(1)
Asatryan, H.; Sargsyan, T. SOME PROPERTIES OF GENERALIZED EIGENFUNCTIONS OF ONE CLASS OF DIFFERENTIAL OPERATORS. Proc. YSU A: Phys. Math. Sci. 2012, 46 (1 (227), 3-9. https://doi.org/10.46991/PYSUA.2012.46.1.003.