APA (7th ed.) Citation

Ladіs, N. N., & Ладіс, М. М. (1971). On one hypothesis of Koulmen. Institute of Mathematics, NAS of Ukraine.

Chicago Style (17th ed.) Citation

Ladіs, N. N., and М. М Ладіс. On One Hypothesis of Koulmen. Institute of Mathematics, NAS of Ukraine, 1971.

MLA (8th ed.) Citation

Ladіs, N. N., and М. М Ладіс. On One Hypothesis of Koulmen. Institute of Mathematics, NAS of Ukraine, 1971.

Warning: These citations may not always be 100% accurate.