@article{10_4064_aa_39_3_269_279,
     author = {O. K\"orner},
     title = {Class numbers of binary quadratic lattices over algebraic number fields},
     journal = {Acta Arithmetica},
     pages = {269--279},
     publisher = {mathdoc},
     volume = {39},
     number = {3},
     year = {1981},
     doi = {10.4064/aa-39-3-269-279},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-39-3-269-279/}
}