THE SYNTHESIS, STRUCTURE AND PROTON MAGNETIC-RESONANCE SPECTRA OF AZOMETHINES OF THE INDENOQUINOLINE AND INDENOQUINOXALINE SERIES Article PROSTAKOV N.S., PLESHAKOV V.G., ABEDIN M.Z., ZAKHAROV V.F., USTENKO A.A. ZHURNAL ORGANICHESKOI KHIMII. MEZHDUNARODNAYA KNIGA / Санкт-Петербургская издательская фирма "Наука" Академиздатцентра РАН. Vol. 19. 1983. P. 173-189
CHANGES IN THE INTENSITY OF SINGING AND THE NUMBERS OF BIRDS IN DIFFERENT REGIONS OF THEIR RANGES Article DENISOVA M.N., PODARUEVA V.I., DAVYDOVA A.S., SAVOKHINA L.V. Zoologicheskii Zhurnal. Vol. 62. 1983. P. 1232-1244