1. An experiment in electrophotometry of the solar spectrum;Nikonov;Rept. Acad. Sci. USSR,1951
2. A speed-up photoelectric spectrophotometer for the sun;Kuprevich;Astron. J.,1952
3. “Actinometry.”;Kalitin,1938
4. To the problem of energy distribution in the solar spectrum and radiation absorption by ozone at 15–50 km elevation;Birukova;Trans. Centr. Aerol. Obs.,1962