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= In submission (4)

=== Submitted to journals (4)
*Ritschel, T.K.S.*, 2026. On Erlang ODE Approximations of Differential Equations with Distributed Time Delays. arXiv: [http://arxiv.org/abs/2502.12984 2502.12984]. DOI (code): [https://doi.org/10.5281/zenodo.15685296 10.5281\/zenodo.15685296]. Submitted in *revised* form on July 19th, 2026.

Martinsen, E.S., Frandsen, S., Scharling, T., Møller, J.K., Madsen, H., *Ritschel, T.K.S.*, Goranovic, G., 2026. A Digital Twin of a Solvent-based Carbon Capture Pilot Plant: Grey-box Modeling and Economic Model Predictive Control. *Submitted* on August 7th, 2026.

Bergland, H., Burlakov, E., Holand, Ø., *Ritschel, T.K.S.*, Wyller, J., 2026. Rangifer-lichen Model with Internal and External Degradation of the Lichen Biomass. /Under revision/.

*Ritschel, T.K.S.*, Reenberg, A.T., Carstensen, P.E., Bendsen, J., Jørgensen, J.B., 2026. Mathematical Meal Models for Simulation of Human Metabolism. arXiv: [https://doi.org/10.48550/arXiv.2307.16444 2307.16444]. /Under revision/.