Pavel Petrovich Korovkin (1913-1985)

Alternative spelling: Korowkin

Pawel Petrowitsch Korowkin at Wikipedia (in German).

Pavel Petrovich Korovkin at Russian Mathematics History page (in Russian).

Pavel Petrovich Korovkin at Mathematics Genealogy Project.

P. P. Korovkin at MathSciNet (for those with access).

Nikol'skii, S. M., A.A. Privalov and P.L. Ul'yanov, Pavel Petrovich Korovkin (on his seventieth birthday), Uspekhi Mat. Nauk 39:1 (1984), 179-180; translation in Russian Maths. Surveys 39:1 (1984), 209-211. This article in Russian can be viewed here, and in English (for those with access) here.

Nikol'skii, S. M., A.A. Privalov and P.L. Ul'yanov, Pavel Petrovich Korovkin (Obituary), Uspekhi Mat. Nauk 41:5 (1986), 155-156; translation in Russian Maths. Surveys 41:5 (1986), 119-121. This article in Russian can be viewed here, and in English (for those with access) here.