@article{ZNSL_1999_265_a6,
     author = {S. V. Vostokov and I. B. Zhukov and G. K. Pak},
     title = {Extensions with almost maximal depth of ramification},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {77--109},
     publisher = {mathdoc},
     volume = {265},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1999_265_a6/}
}