@article{PPN235181684_0261+dmdlog79, title = {Extreme Contractions on Real Hilbert Spaces.}, journal = {Mathematische Annalen}, volume = {261}, year = {1982}, pages = {463-466}, zbl = {0488.47018}, url = {http://dml.mathdoc.fr/item/PPN235181684_0261+dmdlog79} }
Grzaslewicz, Ryszard. Extreme Contractions on Real Hilbert Spaces.. Mathematische Annalen, Tome 261 (1982) pp. 463-466. http://gdmltest.u-ga.fr/item/PPN235181684_0261+dmdlog79/