@article {2809,
	title = {Photorefractive hologram fixing by a 4K cooldown to the phase transition in KLTN},
	journal = {Applied Physics Letters},
	volume = {68},
	year = {1996},
	pages = {2469-2471},
	author = {Agranat, A.J. and Razvag, M. and Balberg, M.}
}
