Hosseiny Motikolai, S.A., Kamalyan, A.H. and Karakhanyan, M.I. (2010) “ON AN ANISOTROPIC BOUNDARY PROBLEM OF DIFFRACTION WITH FIRST AND SECOND TYPE BOUNDARY CONDITIONS”, Proceedings of the YSU A: Physical and Mathematical Sciences, 44(2 (222), pp. 12–15. doi:10.46991/PYSUA.2010.44.2.012.