Alexander Helleboogh Tom Holvoet Danny Weyns Yolande Berbers Extending Time Management Support for Multi-agent Systems. 37-48 http://dx.doi.org/10.1007/978-3-540-32243-6_4 2004 conf/mabs/2004 MABS db/conf/mabs/mabs2004.html#HellebooghHWB04