@article {k25,
	title = {A nonreflecting boundary condition for discrete acoustic and elastic wave equations},
	journal = {Geophysics},
	volume = {50},
	year = {1985},
	pages = {705{\textendash}708},
	publisher = {Society of Exploration Geophysicists},
	author = {Cerjan, Charles and Kosloff, Dan and Kosloff, Ronnie and Reshef, Moshe}
}
