APA (7th ed.) Citation

Ptashnik, В. I., & Пташник, Б. Й. (1971). An analogue of the $n$-point problem for a linear hyperbolic equation. Institute of Mathematics, NAS of Ukraine.

Chicago Style (17th ed.) Citation

Ptashnik, В. I., and Б. Й Пташник. An Analogue of the $n$-point Problem for a Linear Hyperbolic Equation. Institute of Mathematics, NAS of Ukraine, 1971.

MLA (8th ed.) Citation

Ptashnik, В. I., and Б. Й Пташник. An Analogue of the $n$-point Problem for a Linear Hyperbolic Equation. Institute of Mathematics, NAS of Ukraine, 1971.

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