@article{10_4153_CJM_1971_036_8,
     author = {Boyd, David W.},
     title = {On the {Exponent} of an {Osculatory} {Packing}},
     journal = {Canadian journal of mathematics},
     pages = {355--363},
     year = {1971},
     volume = {23},
     number = {2},
     doi = {10.4153/CJM-1971-036-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-036-8/}
}