@article{10_4064_aa_80_3_249_272,
     author = {Ken Ono and Lawrence Sze},
     title = {4-core partitions and class numbers},
     journal = {Acta Arithmetica},
     pages = {249--272},
     publisher = {mathdoc},
     volume = {80},
     number = {3},
     year = {1997},
     doi = {10.4064/aa-80-3-249-272},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-80-3-249-272/}
}