@article{IM2_1981_16_1_a0,
     author = {V. A. Babaitsev},
     title = {On the boundedness of the {Iwasawa} invariant},
     journal = {Izvestiya. Mathematics },
     pages = {1--19},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {1981},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1981_16_1_a0/}
}