See R. Jakobson, Slavic Languages (2d ed. 1955); L. J. Herman, A Dictionary of Slavic Word Families (1974); H. Birnbaum, Common Slavic (1979); A. M. Schenker and E. Stankiewicz, ed., The Slavic Literary Languages (1980); S. C. Gardiner, Old Church Slavonic (1984); R. Jakobson, Russian and Slavic Grammar: Studies, 1931–1981 (ed. by L. R. Waugh and M. Halle, 1984).