@article{SM_1970_11_1_a2,
     author = {E. A. Anfert'eva and N. G. Chudakov},
     title = {Effective estimates from below of the norms of ideals of an imaginary quadratic field},
     journal = {Sbornik. Mathematics},
     pages = {47--58},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {1970},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1970_11_1_a2/}
}