@article{RSMUP_1990__83__193_0,
     author = {Zanardo, Paolo},
     title = {On $\ast $-modules over valuation rings},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {193--199},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {83},
     year = {1990},
     mrnumber = {1066441},
     zbl = {0716.13017},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1990__83__193_0/}
}