@article{MAN_1964__155_161198,
     author = {P. Ribenboim},
     title = {On the {Completion} of a {Valuation} {Ring.}},
     journal = {Mathematische Annalen},
     pages = {392--396},
     publisher = {mathdoc},
     volume = {155},
     year = {1964},
     zbl = {0136.32102},
     url = {http://geodesic.mathdoc.fr/item/MAN_1964__155_161198/}
}