@article{AM2_1977__16_136699,
     author = {B.V. Limaye and N.B. Limaye},
     title = {The fundamental theorem for the projective line over commutative rings.},
     journal = {Aequationes mathematicae},
     pages = {275--282},
     year = {1977},
     volume = {16},
     zbl = {0371.13018},
     url = {http://geodesic.mathdoc.fr/item/AM2_1977__16_136699/}
}