@article{01621018, title = {The connected components on the projective line over a ring.}, journal = {Advances in Geometry}, volume = {1}, year = {2001}, pages = {107-117}, doi = {10.1515/advg.2001.008}, zbl = {0992.51003}, language = {en}, url = {http://dml.mathdoc.fr/item/01621018} }
Blunck, Andrea; Havlicek, Hans. The connected components on the projective line over a ring.. Advances in Geometry, Tome 1 (2001) pp. 107-117. doi : 10.1515/advg.2001.008. http://gdmltest.u-ga.fr/item/01621018/