HISTORY OF UFO STATE RESEARCH IN THE USSR By VICENTE-JUAN BALLESTER OLMOS

https://www.academia.edu/12689467/HISTORY_OF_UFO_STATE_RESEARCH_IN_THE_USSR?sm=b&rhid=41221191742 The State research program on a physical nature of paranormal atmospheric and space phenomena in the USSR: a history of creation and realization of the program, plus perspectives, and hypotheses for a physical nature of "UFOs". Ю.В.Платов, Б.А.Соколов ,Изучение неопознанных летающих объектов в СССР, Вестник Российской академии наук, т.70, № 6, 2000, С. 507. (Bulletin of the Russian Academy of Sciences) ...