@article{10_4153_CJM_1981_040_5,
     author = {Dobbs, David E.},
     title = {Lying-Over {Pairs} of {Commutative} {Rings}},
     journal = {Canadian journal of mathematics},
     pages = {454--475},
     year = {1981},
     volume = {33},
     number = {2},
     doi = {10.4153/CJM-1981-040-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1981-040-5/}
}