Madalina Croitoru Rallou Thomopoulos Representing and Reasoning about Different Viewpoints: An Agronomy Application. 128-140 2009 ICCS http://dx.doi.org/10.1007/978-3-642-03079-6_10 conf/iccs/2009 db/conf/iccs/iccs2009.html#CroitoruT09