@article{SF_1972__4_133893,
     author = {M. Chacron and J. Chacron},
     title = {Theorie des congruences premieres.},
     journal = {Semigroup forum},
     pages = {189--199},
     publisher = {mathdoc},
     volume = {4},
     year = {1972},
     zbl = {0274.20086},
     url = {http://geodesic.mathdoc.fr/item/SF_1972__4_133893/}
}