@inproceedings{CoteHateburHeiseletal.2008, author = {C{\^o}t{\´e}, Isabelle and Hatebur, Denis and Heisel, Maritta and Schmidt, Holger and Wentzlaff, Ina}, title = {A Systematic Account of Problem Frames}, booktitle = {Proceedings of the 12th European Conference on Pattern Languages of Programs (EuroPLoP '2007), Irsee, Germany, July 4-8, 2007.}, pages = {749 -- 767}, year = {2008}, }