@article{1178242586, author = {Behncke, Horst}, title = {Projections in Hilbert space, II}, journal = {Tohoku Math. J. (2)}, volume = {23}, number = {4}, year = {1971}, pages = { 349-352}, language = {en}, url = {http://dml.mathdoc.fr/item/1178242586} }
Behncke, Horst. Projections in Hilbert space, II. Tohoku Math. J. (2), Tome 23 (1971) no. 4, pp. 349-352. http://gdmltest.u-ga.fr/item/1178242586/