Veselka Dojchinova Stoyan Mihov High Performance Part-of-Speech Tagging of Bulgarian. 246-255 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3192&spage=246 2004 conf/aimsa/2004 AIMSA db/conf/aimsa/aimsa2004.html#DoychinovaM04