About the book: 2008 / When selecting factual material for this article, the archives of the Underwater Research Section of the Oceanographic Commission of the Academy of Sciences were used USSR, Commission for the Study of Anomalous Phenomena of the Russian Geographical Society (KAYRGS), Academy of Informationological and Applied Ufology (AIPUFO), declassified KGB materials about UFOs ("Blue Packet"), open press materials, personal archives of the authors, as well as eyewitness memories and interviews , given to the authors by direct participants in the events.