@article{10_4153_CJM_1999_012_9,
     author = {Betke, U. and Jr., K. B\"or\"oczky},
     title = {Asymptotic {Formulae} for the {Lattice} {Point} {Enumerator}},
     journal = {Canadian journal of mathematics},
     pages = {225--249},
     year = {1999},
     volume = {51},
     number = {2},
     doi = {10.4153/CJM-1999-012-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1999-012-9/}
}