@article{00874347, title = {A problem on spheres in flag-spaces. (Ein Kugelproblem im Flaggenraum.)}, journal = {Mathematica Pannonica}, volume = {7}, year = {1996}, pages = {23-31}, zbl = {0847.51028}, language = {en}, url = {http://dml.mathdoc.fr/item/00874347} }
Mészáros, Ferenc. A problem on spheres in flag-spaces. (Ein Kugelproblem im Flaggenraum.). Mathematica Pannonica, Tome 7 (1996) pp. 23-31. http://gdmltest.u-ga.fr/item/00874347/