@article{AA_2015_27_6_a7,
     author = {I. B. Zhukov and G. K. Pak},
     title = {Approximational approach to ramification theory},
     journal = {Algebra i analiz},
     pages = {150--162},
     publisher = {mathdoc},
     volume = {27},
     number = {6},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2015_27_6_a7/}
}