@article{ZNSL_1973_31_a1,
     author = {Z. I. Borevich and E. Ali Jusef},
     title = {Coopletlon of the multiplicative group of a~$p$-extension of an irregular local field},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {6--23},
     publisher = {mathdoc},
     volume = {31},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1973_31_a1/}
}