@article{10_4153_CJM_1991_004_x,
     author = {Fuchs, L. and Monari-Martinez, E.},
     title = {Butler {Modules} {Over} {Valuation} {Domains}},
     journal = {Canadian journal of mathematics},
     pages = {48--60},
     year = {1991},
     volume = {43},
     number = {1},
     doi = {10.4153/CJM-1991-004-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1991-004-x/}
}