@inproceedings{CoteHeiselSchmidtetal.2011, author = {C{\^o}t{\´e}, Isabelle and Heisel, Maritta and Schmidt, Holger and Hatebur, Denis}, title = {UML4PF — A tool for problem-oriented requirements analysis}, booktitle = {2011 IEEE 19th International Requirements Engineering Conference}, pages = {349 -- 350}, doi = {10.1109/RE.2011.6051670}, url = {https://ieeexplore.ieee.org/document/6051670}, year = {2011}, }