@article{10_1017_S0017089599970799,
     author = {Mollin, R. A.},
     title = {Cyclic subgroups of ideal class groups in real quadratic orders},
     journal = {Glasgow mathematical journal},
     pages = {197--206},
     year = {1999},
     volume = {41},
     number = {2},
     doi = {10.1017/S0017089599970799},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089599970799/}
}