Karakhanyan, M. and Kamalyan, H. (2013) “SOME REMARKS ON PROPERTIES OF ELEMENTS FROM COMPLEX BANACH ALGEBRAS”, Proceedings of the YSU A: Physical and Mathematical Sciences. Yerevan, Armenia, 47(2 (231), pp. 15–21. doi: 10.46991/PYSU:A/2013.47.2.015.