1. M. Abel', ?On algebras of bounded continuous functions with values in commutative Banach spaces with an identity?, Uch. Zap. Tart. Univ., No. 277, 52?77 (1971).
2. M. Abel, ?Properties of algebras of functions with values in Banach algebras?, Uch. Zap. Tart. Univ., No. 305, 145?155 (1972).
3. M. Abel', ?Description of of linear multiplicative functionals in algebras of continuous functions?, Uch. Zap. Tart. Univ., No. 430, 14?21 (1977).
4. M. Abel', ?Description of closed Ideals in algebras of continuous vector-valued functions?, Mat. Zametki,30, No. 5, 775?785 (1981).
5. M. Abel', ?Description of ideals of one topological algebra of continuous functions?, Uch. Zap. Tart. Univ., No. 596, 105?119 (1982).