@book{15380,
	author = {Anderson, Robert L. and Ibragimov, Nail H. and Ibragimov, Nail H. ; jt. auth.},
	title = {Lie backlund transformations in applications},
	publisher = {SIAM},
	year = {1979},
	address = {Philadelphia},
	note = {(SIAM studies in Applied Mathematics)}
}