APA (7th ed.) Citation

Peřina, J. Quantum theory of nonlinear couplers.

Chicago Style (17th ed.) Citation

Peřina, Jan. Quantum Theory of Nonlinear Couplers.

MLA (9th ed.) Citation

Peřina, Jan. Quantum Theory of Nonlinear Couplers.

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