@article{ZNSL_1977_71_a9,
     author = {N. P. Ziapkov and A. V. Yakovlev},
     title = {Universally concordant {Galois} extensions},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {133--152},
     publisher = {mathdoc},
     volume = {71},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1977_71_a9/}
}