@article{1183531487, author = {Bruen, A.}, title = {Baer subplanes and blocking sets}, journal = {Bull. Amer. Math. Soc.}, volume = {76}, number = {4}, year = {1970}, pages = { 342-344}, language = {en}, url = {http://dml.mathdoc.fr/item/1183531487} }
Bruen, A. Baer subplanes and blocking sets. Bull. Amer. Math. Soc., Tome 76 (1970) no. 4, pp. 342-344. http://gdmltest.u-ga.fr/item/1183531487/