@article{10_1017_S0017089503001526,
     author = {SHUQIN, FAN and WENBAO, HAN},
     title = {$p${-ADIC} {FORMAL} {SERIES} {AND} {COHEN'S} {PROBLEM}},
     journal = {Glasgow mathematical journal},
     pages = {47--61},
     year = {2004},
     volume = {46},
     number = {1},
     doi = {10.1017/S0017089503001526},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089503001526/}
}