After the offer of professor Pushkarevich in 1937 was sent to post-graduate studying of the Slavic languages, but didn't begin studying because he was arrested at 11 August 1937.
Na popud profesora Puškareviče byl v roce 1937 vyslán na postgraduální studium slovanských jazyků, ale nestačil se začít učit, neboť byl v srpnu zatčen.