@article{BSMF_1966__94__207_0,
     author = {Richman, F. and Walker, C.P.},
     title = {On a certain purification problem for primary abelian groups},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {207--210},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {94},
     year = {1966},
     doi = {10.24033/bsmf.1639},
     mrnumber = {34 #4360},
     zbl = {0147.27302},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1639/}
}