@article{GDZPPN002476037, title = {The Covering Constant for a Cylinder.}, journal = {Monatshefte f\"ur Mathematik}, volume = {72}, year = {1968}, pages = {107-117}, zbl = {0169.24603}, url = {http://dml.mathdoc.fr/item/GDZPPN002476037} }
Bambah, R.P.; Woods, A.C. The Covering Constant for a Cylinder.. Monatshefte für Mathematik, Tome 72 (1968) pp. 107-117. http://gdmltest.u-ga.fr/item/GDZPPN002476037/