@article{MAN_1930__103_159415,
     author = {L.J. Mordell},
     title = {The {Lattice} {Points} in a {Parallelogram}},
     journal = {Mathematische Annalen},
     pages = {38--47},
     publisher = {mathdoc},
     volume = {103},
     year = {1930},
     zbl = {56.0175.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1930__103_159415/}
}