Dan Craigen Sentot Kromodimoeljo Irwin Meisels Bill Pase Mark Saaltink 389-405 1991 conf/fm/1991-1 VDM Europe (1) db/conf/fm/vdme1991-1.html#CraigenKMPS91 http://dx.doi.org/10.1007/3-540-54834-3_24