APA (7th ed.) Citation

Volpert, A., & Volpert, V. Normal solvability of general linear elliptic problems. Wiley.

Chicago Style (17th ed.) Citation

Volpert, A., and V. Volpert. Normal Solvability of General Linear elliptic Problems. Wiley.

MLA (9th ed.) Citation

Volpert, A., and V. Volpert. Normal Solvability of General Linear elliptic Problems. Wiley.

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