@article{10_4153_CMB_1967_038_2,
     author = {Wilker, John B.},
     title = {Open {Disk} {Packings} of a {Disk}},
     journal = {Canadian mathematical bulletin},
     pages = {395--415},
     year = {1967},
     volume = {10},
     number = {3},
     doi = {10.4153/CMB-1967-038-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1967-038-2/}
}