Concurrency in reconfigurable place/transition systems independance of net transformations as well as net transformations and token firing - Ehrig, Hartmut 1944-2016; Ermel, Claudia; Hoffmann, Kathrin; Padberg, Julia; Prange, Ulrike (Forschungsberichte der Fakultät IV - Elektrotechnik und Informatik, Technische Universität Berlin, 2007)