Lexicon Slavonicum. Vol. 2. К ― О / Johan Gabriel Sparwenfeld. — Uppsala. — Stockholm : Almqvist & Wiksell International [distributor], 1988. — [6], 349 с. — (Acta Bibliothecae R. Universitatis Upsaliensis ; 24:2) - Sparwenfeld, J. G. (Acta Bibliothecae R. Universitatis Upsaliensis, 1988)