Mehdi Baba-ali David Marcheix Xavier Skapin Yves Bertrand Generic computation of bulletin boards into geometric kernels. 85-93 2007 conf/afrigraph/2007 Afrigraph http://doi.acm.org/10.1145/1294685.1294700 db/conf/afrigraph/afrigraph2007.html#Baba-aliMSB07