@article{DCG_1991__6_4_131158,
     author = {A. Bezdek and W. Kuperberg and E. Makai},
     title = {Maximum {Density} {Space} {Packing} with {Parallel} {Strings} of {Spheres.}},
     journal = {Discrete & computational geometry},
     pages = {277--284},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1991},
     zbl = {0724.52013},
     url = {http://geodesic.mathdoc.fr/item/DCG_1991__6_4_131158/}
}