Chris Cornelis Martine De Cock Glad Deschrijver Mike Nachtegael Steven Schockaert An Excellent Guest Professor at Ghent University. 109-114 2013 A Tribute to Prof. Dr. Da Ruan https://doi.org/10.1007/978-3-642-30307-4_21 conf/birthday/2013daruan db/conf/birthday/daruan2013.html#CornelisCDNS13