@article{JRAM_1988__388_153035,
     author = {Mohan Nair and Alberto Perelli},
     title = {Sieve methods and class-number probelms. {II.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {40--64},
     publisher = {mathdoc},
     volume = {388},
     year = {1988},
     zbl = {0665.10029},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1988__388_153035/}
}