@article{GDZPPN002405210, title = {Involutions of Projective Spaces.}, journal = {Mathematische Zeitschrift}, volume = {111}, year = {1969}, pages = {37-51}, zbl = {0189.20701}, url = {http://dml.mathdoc.fr/item/GDZPPN002405210} }
Wagner, Ascher. Involutions of Projective Spaces.. Mathematische Zeitschrift, Tome 111 (1969) pp. 37-51. http://gdmltest.u-ga.fr/item/GDZPPN002405210/