@article{GDZPPN00223498X, title = {Iwasawa invariants of imaginary quadratic fields.}, journal = {Manuscripta mathematica}, volume = {79}, year = {1993}, pages = {379-386}, zbl = {0799.11048}, url = {http://dml.mathdoc.fr/item/GDZPPN00223498X} }
Tang, Shu-Leung. Iwasawa invariants of imaginary quadratic fields.. Manuscripta mathematica, Tome 79 (1993) pp. 379-386. http://gdmltest.u-ga.fr/item/GDZPPN00223498X/