1. The diffraction of radio waves around the earth's surface;Fok,1946
2. The field of a vertical and horizontal dipole elevated above the earth's surface;Fok;Zh. Eksp. teor. Fiz.,1949
3. Characteristics of radiation from spherical surface antennae;Belkina,1957
4. Zur vielfachstroung an klein Kugeln;Trinks;Annln. Phys.,1935
5. The scattering of a plane wave by two spheres;Germogenova;Izv. Akad. Nauk SSSR. Ser. geofiz.,1963