Afanasiev, Oleg (November 28, 2007). Супердвигатель НК-93 может "уплыть" в Китай [Engine NK-93 may be lost to China]. Argumenty Nedeli [Arguments of the Week] (in Russian). No. 48. p. 48.
Tetekin, Vyacheslav; Donkovtsev, Nikolay; Kulakov, Anatoly; Korovin, Boris; Fedorchenko, Dmitry (March 26, 2013). "НК-93 – затянувшийся проект: Как демонстратор передовых технологий не пошел в серию" [NK-93 - a protracted project: As a demonstrator of advanced technology did not go into a series]. Voyenno-promyshlennyy kur'yer (Military Industrial Courier) (in Russian).
"Soviets working on big propfan for large transports --- Contra-rotating NK-93 should make first flight in 1993/1994". Commercial. Aerospace Propulsion. Vol. 2, no. 14. McGraw-Hill. July 11, 1991. p. 2. ISSN1050-5245 – via Factiva.
"Trud's NK-93 reaches better than 45,000 lbst. --- Propfan seen making its first flight next year". Special Focus. Aerospace Propulsion. Vol. 4, no. 20. McGraw-Hill. September 30, 1993. p. 3. ISSN1050-5245 – via Factiva.