@article{1093894727, author = {Gemignani, Michael C.}, title = {Parallel $1$-flats in $2$-arrangements.}, journal = {Notre Dame J. Formal Logic}, volume = {13}, number = {3}, year = {1972}, pages = { 273-278}, language = {en}, url = {http://dml.mathdoc.fr/item/1093894727} }
Gemignani, Michael C. Parallel $1$-flats in $2$-arrangements.. Notre Dame J. Formal Logic, Tome 13 (1972) no. 3, pp. 273-278. http://gdmltest.u-ga.fr/item/1093894727/