@article{MASLO_1988_38_2_a10, author = {Hol\'a, \v{L}ubica}, title = {An extension theorem for multifunctions and a characterization of complete metric spaces}, journal = {Mathematica slovaca}, pages = {177--182}, year = {1988}, volume = {38}, number = {2}, mrnumber = {945372}, zbl = {0649.54007}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1988_38_2_a10/} }