Vitali Schneider, Walter Vogler. Modal Open Petri Nets. In Susanna Donatelli, Stefan Haar, editors, Application and Theory of Petri Nets and Concurrency - 40th International Conference, PETRI NETS 2019, Aachen, Germany, June 23-28, 2019, Proceedings. Volume 11522 of Lecture Notes in Computer Science, pages 25-46, Springer, 2019. [doi]