Jelasin soal Andriyan Nikolayev dong

Andriyan Grigoryevich Nikolayev (Chuvash dan ; ) adalah seorang antariksawan Uni Soviet. Ia beretnis Chuvash.

"Testing of rocket and space technology – the business of my life" Events and facts – A.I. Ostashev, Korolyov, 2001.;

"Bank of the Universe" – edited by Boltenko A. C., Kiev, 2014., publishing house "Phoenix",

A.I. Ostashev, Sergey Pavlovich Korolyov – The Genius of the 20th Century — 2010 M. of Public Educational Institution of Higher Professional Training MGUL .

"S. P. Korolev. Encyclopedia of life and creativity" – edited by C. A. Lopota, RSC Energia. S. P. Korolev, 2014