@article{1183492914, author = {Wong, B. C.}, title = {On a certain system of $\infty ^{r - 2}$ lines in $r$-space}, journal = {Bull. Amer. Math. Soc.}, volume = {34}, number = {6}, year = {1928}, pages = { 553-554}, language = {en}, url = {http://dml.mathdoc.fr/item/1183492914} }
Wong, B. C. On a certain system of $\infty ^{r - 2}$ lines in $r$-space. Bull. Amer. Math. Soc., Tome 34 (1928) no. 6, pp. 553-554. http://gdmltest.u-ga.fr/item/1183492914/