@article {chomsky1991distinct,
	title = {Distinct features of double phase conjugation in photorefractive semi-insulating GaAs},
	journal = {Optics communications},
	volume = {84},
	number = {1-2},
	year = {1991},
	pages = {104{\textendash}108},
	publisher = {Elsevier},
	author = {Chomsky, Doron and Sternklar, Shmuel and Jackel, Steven and Zigler, Arie}
}
