Method of Phase–Amplitude Functions in the Polarized Neutron Reflectometry - Salamatov, Yu. A.; Kravtsov, E. A.; Sadilov, V. V.; Nagorny, A. V.; Proglyado, V. V.; Milyaev, M. A. (Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques, 2022)