@book{13200,
	author = {Conference on "Differential Equations", Uppsala, April 18-23, 1977 and Berg, G. ; ed.},
	title = {Differential equations; proceedings},
	publisher = {Almqvist & Wiksell},
	year = {1977},
	address = {Stockholm},
	note = {"Symposia Universitatis Upsaliensis Annum Quingentesimum Celebrantis, 7"}
}