@article{IM_1981__63_142795,
     author = {James Lee Hafner},
     title = {New {Omega} {Theorems} for {Two} {Classical} {Lattice} {Points} {Problems.}},
     journal = {Inventiones mathematicae},
     pages = {181--186},
     publisher = {mathdoc},
     volume = {63},
     year = {1981},
     zbl = {0458.10031},
     url = {http://geodesic.mathdoc.fr/item/IM_1981__63_142795/}
}