Institut fiziko-tekhnicheskikh problem Severa (Akademi︠i︡a nauk SSSR), Institut geologii (Akademi︠i︡a nauk SSSR. ︠I︡Akutskiĭ filial), Institut kosmicheskikh issledovaniĭ (Akademi︠i︡a nauk SSSR), & Grigorʹev, R. S. (1974). Voprosy prikladnoĭ fiziki. [︠I︡AF SO AN SSSR In-t fiz.-tekh. problem Severa, In-t geologii, In-t kosmofiz, issledovaniĭ i aėronomii].
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিInstitut fiziko-tekhnicheskikh problem Severa (Akademi︠i︡a nauk SSSR), Institut geologii (Akademi︠i︡a nauk SSSR. ︠I︡Akutskiĭ filial), Institut kosmicheskikh issledovaniĭ (Akademi︠i︡a nauk SSSR), এবং Ruslan Spiridonovich Grigorʹev. Voprosy Prikladnoĭ Fiziki. ︠I︡Akutsk: [︠I︡AF SO AN SSSR In-t fiz.-tekh. problem Severa, In-t geologii, In-t kosmofiz, issledovaniĭ i aėronomii], 1974.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিInstitut fiziko-tekhnicheskikh problem Severa (Akademi︠i︡a nauk SSSR), et al. Voprosy Prikladnoĭ Fiziki. [︠I︡AF SO AN SSSR In-t fiz.-tekh. problem Severa, In-t geologii, In-t kosmofiz, issledovaniĭ i aėronomii], 1974.