[1]
A. H. Petrosyan, “THE INVESTIGATION OF THE DIFFERENTIAL OPERATOR’S POINT SPECTRUM IN INFINITY WITH PRECISE BEHAVIOUR COEFFICIENTS”, Proc. YSU A: Phys. Math. Sci., vol. 37, no. 3 (202), pp. 8–15, Jan. 2025, doi: 10.46991/PYSUA.2003.37.3.008.