@article{CM_1982__47_1_31_0, author = {Yager, Rodney I.}, title = {A {Kummer} criterion for imaginary quadratic fields}, journal = {Compositio Mathematica}, pages = {31--42}, publisher = {Martinus Nijhoff Publishers}, volume = {47}, number = {1}, year = {1982}, zbl = {0506.12008}, mrnumber = {668779}, language = {en}, url = {http://www.numdam.org/item/CM_1982__47_1_31_0/} }