Alexander Tkachenko author Timo Petmanson author Sven Laur author 2013-08 text Jakub Piskorski editor Lidia Pivovarova editor Hristo Tanev editor Roman Yangarber editor Association for Computational Linguistics Sofia, Bulgaria conference publication tkachenko-etal-2013-named https://aclanthology.org/W13-2412/ 2013-08 78 83