@article{ZNSL_2017_455_a1,
     author = {T. Hakobyan},
     title = {On the reduced group of principal units in cyclic extensions of local fields},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {14--24},
     publisher = {mathdoc},
     volume = {455},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2017_455_a1/}
}