@article{ZNSL_1976_57_a3,
     author = {Z. I. Borevich and E. L. Gerlovin},
     title = {Structure of the group of principal units in a~cyclic $p$-extension of a~local field},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {51--63},
     publisher = {mathdoc},
     volume = {57},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_57_a3/}
}