@article{ZNSL_1980_103_a12,
     author = {G. K. Pak},
     title = {Filtration on the group of principal units of a~functional local field as {a~Galois} module},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {96--99},
     publisher = {mathdoc},
     volume = {103},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1980_103_a12/}
}