@article{GDZPPN002358905, title = {Multi-valued Namioka theorems.}, journal = {Mathematica Scandinavica}, volume = {58}, year = {1986}, pages = {227-235}, zbl = {0578.54007}, url = {http://dml.mathdoc.fr/item/GDZPPN002358905} }
Labuda, Iwo. Multi-valued Namioka theorems.. Mathematica Scandinavica, Tome 58 (1986) pp. 227-235. http://gdmltest.u-ga.fr/item/GDZPPN002358905/