@article{GDZPPN002352052,
title = {Coverings of Metric Spaces with Randomly Placed Balls.},
journal = {Mathematica Scandinavica},
volume = {32},
year = {1973},
pages = {169-186},
zbl = {0285.60006},
url = {http://dml.mathdoc.fr/item/GDZPPN002352052}
}
Hoffmann-Jorgensen, Jorgen. Coverings of Metric Spaces with Randomly Placed Balls.. Mathematica Scandinavica, Tome 32 (1973) pp. 169-186. http://gdmltest.u-ga.fr/item/GDZPPN002352052/