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2. Adelphotes: Horbatsch, O. (Ed.) (1988). Adelphotes. Die erste gedruckte griechisch-kirchenslavische Grammatik, L’viv-Lemberg 1591 (Specimina Philologiae Slavicae, 76). München.
3. Albright, A. (2003). A quantitative study of Spanish paradigm gaps. In G. Garding & M. Tsujimura (Eds.), West coast conference on formal linguistics, 22 (pp. 1–14). Somerville.
4. Alley, M., et al. (2006). On Russian verbal gaps and non-optimality in language. Paper presented at SLS 2006. Bloomington. http://www.indiana.edu/~sls2006/Handouts/SimsSLS.pdf (10-1-2007).
5. Barsov (1785): Tobolova, M. P., & Uspenskij, B. A. (red.) (1981). Rossijskaja grammatika Antona Alekseeviča Barsova. Moskva.