Columbia subject headings:
Harvard subject headings:
Kochkina, P. I︠A︡. (Pelagei︠a︡ I︠A︡kovlevna), 1899-
Scientists--Soviet Union--Biography
Princeton subject headings:
Fluid mechanics--Soviet Union--History.
Kochina, P. I︠A︡. (Pelagei︠a︡ I︠A︡kovlevna), 1899-
Scientists--Soviet Union--Biography.