@article{GFA_1991__1_2_58120,
     author = {N. Alon},
     title = {Economical {Coverings} of {Sets} of {Lattice} {Points.}},
     journal = {Geometric and functional analysis},
     pages = {225--230},
     publisher = {mathdoc},
     volume = {1},
     number = {2},
     year = {1991},
     zbl = {0757.52015},
     url = {http://geodesic.mathdoc.fr/item/GFA_1991__1_2_58120/}
}