V. I. Rozenberg, “Addition theorems for modified Bessel and Hankel functions”, Izv. Vyssh. Uchebn. Zaved. Mat., 1969, no. 11, 72–75
1972
2.
V. I. Rozenberg, “Diffraction of waves by an arbitrary set of non-concentrically stratified spheres”, Zh. Vychisl. Mat. Mat. Fiz., 12:1 (1972), 266; U.S.S.R. Comput. Math. Math. Phys., 12:1 (1972), 357–358
