[1]
G. V. Dallakyan, “ON APPROXIMATION OF THE SOLUTIONS OF BOUNDARY-VALUE PROBLEMS IN UNBOUNDED DOMAINS”, Proc. YSU A: Phys. Math. Sci., vol. 34, no. 1 (192), pp. 33–41, Apr. 2000, doi: 10.46991/PYSUA.2000.34.1.033.