Beekes, Robert S. P. 1995. Comparative Indo-European linguistics. An introduction. Amsterdam: John Benjamins.; Nielsen, Niels Åge. 1995. Dansk etymologisk ordbog. Ordenes historie. Copenhagen: Gyldendal.; Pokorny, Julius. 1994. Indogermanisches etymologisches Wörterbuch. I-II. 3 ed. Tübingen: Francke Verlag.
@misc{7466, author = {Beekes, Robert S. P.}, title = {Comparative Indo-European linguistics. An introduction. Amsterdam: John Benjamins.; Nielsen, Niels Åge. 1995. Dansk etymologisk ordbog. Ordenes historie. Copenhagen: Gyldendal.; Pokorny, Julius. 1994. Indogermanisches etymologisches Wörterbuch. I-II. 3 ed. Tübingen: Francke Verlag.}, year = {1995} }