@article{MOMA_1980__89_177953,
     author = {L.J. Yang},
     title = {Multiple {Lattice} {Packings} and {Coverings} of {Spheres.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {69--76},
     publisher = {mathdoc},
     volume = {89},
     year = {1980},
     zbl = {0414.10027},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1980__89_177953/}
}