@book{12172,
	author = {Conference on "Set-valued Mappings, Selections and Topological Properties of 2X", State University of New York, Buffalo, May 8-10, 1969 and Fleischman, W. M. ; ed.},
	title = {Set-valued mappings, selections and topological properties of 2X; proceedings},
	publisher = {Springer-Verlag},
	year = {1970},
	address = {Berlin}
}