@article{IM2_1967_1_3_a11,
     author = {A. P. Novikov},
     title = {On the class number of fields, abelian over an imaginary quadratic field},
     journal = {Izvestiya. Mathematics },
     pages = {697--705},
     publisher = {mathdoc},
     volume = {1},
     number = {3},
     year = {1967},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1967_1_3_a11/}
}