@article{701158,
title = {On the singlevaluedness and differentiation of metric projections},
booktitle = {Abstracta. 7th Winter School on Abstract Analysis},
series = {GDML\_Books},
publisher = {Czechoslovak Academy of Sciences},
address = {Praha},
year = {1979},
pages = {104-105},
url = {http://dml.mathdoc.fr/item/701158}
}
Zajíček, L. On the singlevaluedness and differentiation of metric projections, dans Abstracta. 7th Winter School on Abstract Analysis, GDML_Books, (1979), pp. 104-105. http://gdmltest.u-ga.fr/item/701158/