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diff --git a/src/webqueryciteseerx.cpp b/src/webqueryciteseerx.cpp
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+/***************************************************************************
+ *   Copyright (C) 2008 by Jacob Kanev <j_kanev@arcor.de>,                 *
+ *   Thomas Fischer <fischer@unix-ag.uni-kl.de>                            *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+#include <qfile.h>
+#include <qregexp.h>
+#include <qbuffer.h>
+#include <qspinbox.h>
+
+#include <klocale.h>
+#include <klineedit.h>
+#include <kmessagebox.h>
+#include <kurl.h>
+#include <kdebug.h>
+
+#include <fileimporterbibtex.h>
+#include <encoderxml.h>
+#include <settings.h>
+#include "webqueryciteseerx.h"
+
+using BibTeX::Value;
+using BibTeX::Entry;
+using BibTeX::EntryField;
+
+namespace KBibTeX
+{
+
+    //_______________________________________________________________________________________________________________
+    // Construct widget
+
+    WebQueryCiteSeerXWidget::WebQueryCiteSeerXWidget( QWidget *parent, const char *name )
+            : WebQueryWidget( parent, name )
+    {
+        init();
+
+        Settings *settings = Settings::self();
+        QString value = settings->getWebQueryDefault( "CiteSeerX" );
+        value = value == QString::null ? "" : value;
+        lineEditQuery->setText( value );
+        slotTextChanged( value, true );
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // Construct
+
+    WebQueryCiteSeerX::WebQueryCiteSeerX( QWidget* parent )
+            : WebQuery( parent ), m_citeSeerXServer( "citeseerx.ist.psu.edu" )
+    {
+        m_widget = new WebQueryCiteSeerXWidget( parent );
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // Destroy
+
+    WebQueryCiteSeerX::~WebQueryCiteSeerX()
+    {
+        delete m_widget;
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // GUI string
+
+    QString WebQueryCiteSeerX::title()
+    {
+        return i18n( "CiteSeerX" );
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // GUI info
+
+    QString WebQueryCiteSeerX::disclaimer()
+    {
+        return i18n( "About CiteSeerX" );
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // URL for disclaimer
+
+    QString WebQueryCiteSeerX::disclaimerURL()
+    {
+        return "http://citeseerx.ist.psu.edu/about/site";
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // return pointer to widget
+
+    WebQueryWidget *WebQueryCiteSeerX::widget()
+    {
+        return m_widget;
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // user has pressed "Cancel"
+
+    void WebQueryCiteSeerX::cancelQuery()
+    {
+        m_queryQueue.clear();
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // main function -- collects all queries for one search
+
+    void WebQueryCiteSeerX::query()
+    {
+        // store CiteSeerX as future default
+        WebQuery::query();
+        Settings *settings = Settings::self();
+        settings->setWebQueryDefault( "CiteSeerX", m_widget->lineEditQuery->text() );
+
+        // read number of desired results from GUI
+        m_queryQueue.clear();
+        m_desiredHits = m_widget->spinBoxMaxHits->value();
+        // one for each entry, and one for each page of 10 links
+        setNumStages( m_desiredHits + ( m_desiredHits / 10 + 1 ) );
+
+        // prepare search term
+        QString searchTerm = m_widget->lineEditQuery->text().stripWhiteSpace().replace( '$', "" );
+        QStringList queryWords = QStringList::split( QRegExp( "\\s+" ), searchTerm );
+
+        if ( searchTerm.isEmpty() || queryWords.size() == 0 )
+        {
+            setEndSearch( WebQuery::statusInvalidQuery );
+            return;
+        }
+
+        // build query from search term
+        QString query;
+
+        for ( uint i = 0; i < queryWords.size(); ++i )
+        {
+            if ( i ) query += " AND ";
+
+            query += queryWords[i];
+        }
+
+        query = query.replace( "%", "%25" ).replace( "+", "%2B" ).replace( " ", "%20" ).replace( "#", "%23" ).replace( "&", "%26" ).replace( "?", "%3F" );
+
+        // schedule jobs
+        DataRequest dr;
+        dr.url = KURL( QString( "http://citeseerx.ist.psu.edu/search?q=" ).append( query ).append( "&submit=Search&sort=rel" ) );
+        dr.parser = &WebQueryCiteSeerX::parseSummaryPage;
+        m_queryQueue.push_back( dr );
+
+        // start job queue
+        nextJob();
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // process results from current job
+
+    void WebQueryCiteSeerX::parseSummaryPage( const QString& data )
+    {
+        // regexp. for finding paper entries (example: href="/viewdoc/summary;jsessionid=12345ABCD?doi=10.1.1.108.9937")
+        QRegExp paperXpr( "href=\"(/viewdoc/summary[^?]*\\?doi=[^\"]+)\"" );
+
+        // count paper results and schedule single paper URLs
+
+        for ( int p = paperXpr.search( data ); p >= 0; p = paperXpr.search( data, p + paperXpr.matchedLength() ) )
+        {
+            if ( ++m_receivedHits > m_desiredHits )
+                break;
+
+            DataRequest dr;
+
+            dr.url = KURL( QString( "http://" ) + m_citeSeerXServer + paperXpr.cap( 1 ) );
+
+            dr.parser = &WebQueryCiteSeerX::parsePaperPage;
+
+            m_queryQueue.push_back( dr );
+        }
+
+        // if we haven't reached the desired number of hits, schedule the next summary page
+        QRegExp nextSummaryXpr( "<a href=\"([^\"]+)\">Next 10" );
+
+        if ( m_receivedHits < m_desiredHits )
+            if ( nextSummaryXpr.search( data ) >= 0 )
+            {
+                DataRequest dr;
+                dr.url = KURL( QString( "http://" ) + m_citeSeerXServer + nextSummaryXpr.cap( 1 ).replace( "&amp;", "&" ) );
+                dr.parser = &WebQueryCiteSeerX::parseSummaryPage;
+                m_queryQueue.push_back( dr );
+            }
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // process the result of one single paper link
+
+    void WebQueryCiteSeerX::parsePaperPage( const QString& data )
+    {
+        // find type and id: @XXX{ YYY
+        QRegExp typeIdXpr( "@(.*)\\{(.*)," );
+        typeIdXpr.setMinimal( true );
+        typeIdXpr.search( data );
+        QString typeStr = typeIdXpr.cap( 1 );
+        QString id = typeIdXpr.cap( 2 );
+
+        // create entry
+        Entry *entry = new BibTeX::Entry( typeIdXpr.cap( 1 ), typeIdXpr.cap( 2 ) );
+
+        // find abstract: <..>Abstract:</..> <..> XXX </..>
+        parseForSingleExpression( "<[^<]+>Abstract:</[^<]+>\\s*<[^<]+>([^<]+)</[^<]+>", data, entry, BibTeX::EntryField::ftAbstract );
+
+        // find title: title = {XXX}
+        parseForSingleExpression( "title = \\{([^}]+)\\}", data, entry, BibTeX::EntryField::ftTitle );
+
+        // find author: author = {XXX}
+        parseForSingleExpression( "author = \\{([^}]+)\\}", data, entry, BibTeX::EntryField::ftAuthor );
+
+        // find year: year = {XXX}
+        parseForSingleExpression( "year = \\{([^}]+)\\}", data, entry, BibTeX::EntryField::ftYear );
+
+        // find journal: journal = {XXX}
+        parseForSingleExpression( "journal = \\{([^}]+)\\}", data, entry, BibTeX::EntryField::ftJournal );
+
+        // find pages: pages = {XXX}
+        parseForSingleExpression( "pages = \\{([^}]+)\\}", data, entry, BibTeX::EntryField::ftPages );
+
+        // publish what we've found
+        emit foundEntry( entry, false );
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // find single bibtex field in html page and add to entry
+
+    void WebQueryCiteSeerX::parseForSingleExpression( QString description, const QString &data, Entry *entry, BibTeX::EntryField::FieldType type )
+    {
+        // search, and add to entry if found
+        QRegExp xpr( description );
+
+        if ( xpr.search( data ) + 1 )
+        {
+            EntryField *field = new EntryField( type );
+            field->setValue( new Value( xpr.cap( 1 ), false ) );
+            entry->addField( field );
+        }
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // read data from the job and start the current parser
+
+    void WebQueryCiteSeerX::getData( KIO::Job *job )
+    {
+        // advance GUI progress bar
+        enterNextStage();
+
+        if ( job && !job->error() && !m_aborted )
+        {
+
+            // read data
+            QBuffer data;
+            data.open( IO_WriteOnly );
+            data.writeBlock( dynamic_cast<KIO::StoredTransferJob*>( job )->data() );
+            data.close();
+            data.open( IO_ReadOnly );
+            QTextStream ts( &data );
+            QString result = ts.read();
+            data.close();
+
+            // hand the read data over to the parser
+            ( this->*m_currentParser )( result );
+        }
+
+        // proceed
+        nextJob();
+    }
+
+
+    //_______________________________________________________________________________________________________________
+    // call the next job
+
+    void WebQueryCiteSeerX::nextJob()
+    {
+        // no more requests: finished
+        if ( !m_queryQueue.size() )
+        {
+            setEndSearch( WebQuery::statusSuccess );
+            m_receivedHits = 0;
+        }
+        // else: take the next request from queue and start it
+        else if ( !m_aborted )
+        {
+            m_currentParser = m_queryQueue.front().parser;
+            KIO::Job *job = KIO::storedGet( m_queryQueue.front().url, FALSE, FALSE );
+            m_queryQueue.pop_front();
+            connect( job, SIGNAL( result( KIO::Job * ) ), this, SLOT( getData( KIO::Job * ) ) );
+        }
+    }
+
+}
+
+#include "webqueryciteseerx.moc"