@book{12117,
	author = {Polish Academy of Sciences, Institute of Mathematics and Mirkowska, Grazyna ; ed.},
	title = {Mathematical problems in computation theory; proceedings of the 26th seminar at the Banach International Mathematical Center Warsaw from Sept. 16-Dec.14, 1985},
	publisher = {Polish Scientific Publishers},
	year = {1988},
	series = {Banach Center Publications},
	address = {Warsaw}
}