@article{RSMUP_1984__72__13_0,
     author = {Richman, Fred},
     title = {Butler groups, valuated vector spaces, and duality},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {13--19},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {72},
     year = {1984},
     mrnumber = {778329},
     zbl = {0576.20033},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1984__72__13_0/}
}