Hovsepyan, K.H., and A.V. Tsutsulyan. 2017. “$K$-GROUPS OF SOME SUBALGEBRAS OF THE TOEPLITZ ALGEBRA”. Proceedings of the YSU A: Physical and Mathematical Sciences 51 (3 (244). Yerevan, Armenia:224-30. https://doi.org/10.46991/PYSU:A/2017.51.3.224.