@article {2000,
	title = {On a Steffen\\\'s result about parametric surfaces with prescribed mean curvature},
	number = {SISSA;102/00/M},
	year = {2000},
	publisher = {SISSA Library},
	url = {http://hdl.handle.net/1963/1558},
	author = {Roberta Musina and Paolo Caldiroli}
}
