@article{10_4064_aa_52_2_147_162,
     author = {Georges Gras},
     title = {Relations congruentielles lin\'eaires entre nombres de classes de corps quadratiques},
     journal = {Acta Arithmetica},
     pages = {147--162},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {1989},
     doi = {10.4064/aa-52-2-147-162},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-52-2-147-162/}
}