@article{CRT+5,
title = { Impossibility of gathering, a certification },
author = {Courtieu, Pierre and Rieg, Lionel and Tixeuil, S\'ebastien and Urbain, Xavier},
year = {2015},
journal = {Information Processing Letters},
number = {3},
pages = {447--452},
volume = {115},
team = {CNAM, Other},
}
