@article{04127977,
title = {A characterization of the Hall planes by planar and nonplanar involutions.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {12},
year = {1989},
pages = {781-785},
doi = {10.1155/S0161171289000955},
zbl = {0688.51003},
language = {en},
url = {http://dml.mathdoc.fr/item/04127977}
}
Johnson, N.L. A characterization of the Hall planes by planar and nonplanar involutions.. International Journal of Mathematics and Mathematical Sciences, Tome 12 (1989) pp. 781-785. doi : 10.1155/S0161171289000955. http://gdmltest.u-ga.fr/item/04127977/