What is the nationality of the theoretical computer scientist who obtained his PhD at the Delft University of Technology in 1989?
Dutch
Ferdinand Peper et al.: On High-Density Resource-Restricted Pulse-Based IoT Networks. (2019) authored by Ferdinand Peper. Kenji Leibnitz et al.: Self-Reproducing Loops on Asynchronous Cellular Automata with Aggregate Neighborhood Rules. (2019) authored by Ferdinand Peper. Ferdinand Peper is the alternative name for Josep Carmona and Jia Lee et al.: On Swarm Networks in Brownian Environments. (2008) authored by Ferdinand Peper. Teijiro Isokawa et al.: Cellular Automata and Discrete Complex Systems - 20th International Workshop, AUTOMATA 2014, Himeji, Japan, July 7-9, 2014, Revised Selected Papers (2015) edited by Ferdinand Peper. Asynchronous communicating cellular automata: Formalization, robustness and equivalence. (2022) authored by Ferdinand Peper '<unk>. He was the Chair of the Fourth International Workshop on Natural Computing (2009) and acted as a co-editor of the book Natural Computing (Springer).
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Question: What is the nationality of the theoretical computer scientist who obtained his PhD at the Delft University of Technology in 1989?
Context: Ferdinand Peper et al.: On High-Density Resource-Restricted Pulse-Based IoT Networks. (2019) authored by Ferdinand Peper. Kenji Leibnitz et al.: Self-Reproducing Loops on Asynchronous Cellular Automata with Aggregate Neighborhood Rules. (2019) authored by Ferdinand Peper. Ferdinand Peper is the alternative name for Josep Carmona and Jia Lee et al.: On Swarm Networks in Brownian Environments. (2008) authored by Ferdinand Peper. Teijiro Isokawa et al.: Cellular Automata and Discrete Complex Systems - 20th International Workshop, AUTOMATA 2014, Himeji, Japan, July 7-9, 2014, Revised Selected Papers (2015) edited by Ferdinand Peper. Asynchronous communicating cellular automata: Formalization, robustness and equivalence. (2022) authored by Ferdinand Peper '<unk>. He was the Chair of the Fourth International Workshop on Natural Computing (2009) and acted as a co-editor of the book Natural Computing (Springer).
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