Viberg, Åke. 1984. The verbs of perception: a typological study. In Butterworth, Brian and Comrie, Bernard and Dahl, Östen (eds.), Explanations for Language Universals, 123-162. Berlin: Mouton de Gruyter.
@incollection{jacquesestimative-viberg84perception, address = {Berlin}, author = {Viberg, Åke}, booktitle = {Explanations for Language Universals}, editor = {Butterworth, Brian and Comrie, Bernard and Dahl, Östen}, pages = {123-162}, publisher = {Mouton de Gruyter}, title = {The verbs of perception: a typological study}, year = {1984} }