@article{10_4064_aa125_3_5,
     author = {Paul Jenkins and Ken Ono},
     title = {Divisibility criteria for class numbers of
 imaginary quadratic fields},
     journal = {Acta Arithmetica},
     pages = {285--289},
     publisher = {mathdoc},
     volume = {125},
     number = {3},
     year = {2006},
     doi = {10.4064/aa125-3-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa125-3-5/}
}