References

Additional sources and materials

Deyanova M. 1966 - Imperfekt i aorist v slavyanskite ezitsi. Sofiya, 1966.
 Aronson H.I. 1977 - Interrelationships between aspect and mood in Bulgarian // Folia Slavica. 1977. V. 1.
 Chvany C. 1988 - Distance, directness and discreteness in Bulgarian and English verbal morphology // American contributions to the Tenth International congress of slavists: Linguistics / Ed. by A.M. Schenker. Columbus, 1988.
 Chung S., Timberlake A. 1985 - Tense, aspect and mood // Language typology and syntactic field description. V. 3:
 Grammatical categories and the lexicon / Ed. by T. Shopen. Cambridge, 1985.
 Denniston J.D. 1934 - The Greek particles. Oxford, 1934.
 Declh J-P., Guentcheva Z. 1990 - Discourse analysis of aorist and imperfect in Bulgarian and French // Verbal aspect and discourse / Ed. by N.B. Thelin. Amsterdam, 1990.
 Fielder G.E. 1993 -The semantics and pragmatics of verbal categories in Bulgarian. Lewiston, 1993.
 Friedman V.A. 1977 - The grammatical categories of the Macedonian indicative. Columbus, 1977.
 Friedman V.A. 1986 - Evidentiality in the Balkans: Macedonian, Bulgarian and Albanian // Evidentiality: The linguistic coding of epistemology /Ed. by J. Nichols and W. Chafe. Norwood (NJ), 1986.
 Friedman V.A. 1993 - The loss of the imperfect aorist in Macedonian: Structural significance and Balkan context // American contributions to the Eleventh International congress of slavists / Ed. by R. A MacGuire and A. Timberlake. Columbus, 1993.
 Hendriks P., Pijnenburg H. 1987 - The Bulgarian pluperfect and its Macedonian translation equivalents // Dutch studies in South Slavic and Balkan linguistics. Amsterdam, 1987.
 Lindstedt J. 1985 - On the semantics of tense and aspect in Bulgarian. Helsinki, 1985.
 Usikova R.P. 1995 - Towards a contrastive analysis of the Balkan Slavic languages: Macedonian and Bulgarian // Balkan Forum. 1995. V. 31.