@article{GDZPPN002299178, title = {On the Structure of Maximal R-Sets of a Hilbert Space.}, journal = {Mathematische Annalen}, volume = {179}, year = {1968}, pages = {220-238}, zbl = {0195.42003}, url = {http://dml.mathdoc.fr/item/GDZPPN002299178} }
LUFT, E. On the Structure of Maximal R-Sets of a Hilbert Space.. Mathematische Annalen, Tome 179 (1968) pp. 220-238. http://gdmltest.u-ga.fr/item/GDZPPN002299178/