@article{MAN_1978__237_182778,
     author = {Serge Lang and Daniel S. Kubert},
     title = {Units in the {Modular} {Function} {Field.} {V.} {Iwasawa} {Theory} in the {Modular} {Tower.}},
     journal = {Mathematische Annalen},
     pages = {97--104},
     publisher = {mathdoc},
     volume = {237},
     year = {1978},
     zbl = {0371.12021},
     url = {http://geodesic.mathdoc.fr/item/MAN_1978__237_182778/}
}