@book{12145,
	author = {Conference on "Operator Theory", Timisoara and Herculane (Romania) June 2-12, 1980. and Apostol, C. ; ed.},
	title = {Topics in modern operator theory; proceedings of the 5th international conference},
	publisher = {Birkhauser Verlag},
	year = {1981},
	address = {Basel}
}