APA (7th ed.) Citation

Sobolevskii, P. (1999). The Hardy's inequality and positive invertability of elliptic operators. Нелинейные граничные задачи.

Chicago Style (17th ed.) Citation

Sobolevskii, P.E. "The Hardy's Inequality and Positive Invertability of Elliptic Operators." Нелинейные граничные задачи 1999.

MLA (8th ed.) Citation

Sobolevskii, P.E. "The Hardy's Inequality and Positive Invertability of Elliptic Operators." Нелинейные граничные задачи, 1999.

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