Хорошая статья про Синая в принстонской газете

“I could not solve the problems which he gave to me and he was very unhappy with me, but then later the situation changed,” Sinai said of his advising experiences with Kolmogorov.

http://dailyprincetonian.com/news/2014/04/abel-prize-winner-yakov-sinai-a-lifetime-of-artful-mathematics/