APA (7th ed.) Citation

Salimov, R. R., & Klishchuk, B. A. (2016). The extremal problem for the area of an image of a disc.

Chicago Style (17th ed.) Citation

Salimov, R. R., and B. A. Klishchuk. The Extremal Problem for the Area of an Image of a Disc. 2016.

MLA (8th ed.) Citation

Salimov, R. R., and B. A. Klishchuk. The Extremal Problem for the Area of an Image of a Disc. 2016.

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