@article{AL_1996_35_3_a0,
     author = {Ch. K. Gupta and N. S. Romanovskii},
     title = {Normal automorphisms of a pro-$p$-group that is free in the
},
     journal = {Algebra i logika},
     pages = {249--267},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1996_35_3_a0/}
}