Václava Kettnerová, Markéta Lopatková (2009):Changes in Valency Structure of Verbs: Grammar vs. Lexicon. In: Slovko 2009, NLP, Corpus Linguistics, Corpus Based Grammar Research, pp. 198-210, Slovenská akadémia vied, Bratislava, Slovakia, ISBN 978-80-7399-875-2 (local PDF, bibtex)