Jacques Klein Franck Fleurey Jean-Marc Jézéquel Weaving Multiple Aspects in Sequence Diagrams. 167-199 2007 3 T. Aspect-Oriented Software Development http://dx.doi.org/10.1007/978-3-540-75162-5_7 journals/taosd/2007-3 db/journals/taosd/taosd3.html#KleinFJ07