# jemdoc: menu{MENU}{book_chapters.html}, showsource, analytics{UA-126705648-1} = Books and chapters (2) === 2023 (1) Aschenbruck, T., Dickert, J., Esterhuizen, W., Filipecki, B., Grundel, S., Helmberg, C., *Ritschel, T.K.S.*, Sauerteig, P., Streif, S., Wasserrab, A., Worthmann, K., 2023. Hierarchical Power Systems: Optimal Operation using Grid Flexibilities. SpringerBriefs in Energy, Springer. DOI: [https://doi.org/10.1007/978-3-031-25699-8 10.1007/978-3-031-25699-8]. === 2021 (1) Aschenbruck, T., Baumann, M., Esterhuizen, W., Filipecki, B., Grundel, S., Helmberg, C., *Ritschel, T.K.S.*, Sauerteig, P., Streif, S., Worthmann, K., 2021. Optimization and Stabilization of Hierarchical Electrical Networks. *In:* Göttlich, S., Herty, M., Milde, A. (Eds.), /Mathematical Modeling, Simulation and Optimization for Power Engineering and Management/, pp. 171--198. Mathematics in Industry 34, Springer. DOI: [https://doi.org/10.1007/978-3-030-62732-4_8 10.1007/978-3-030-62732-4_8].