@inproceedings{11311_1228114, author = {Spada, Fabio and Sagliano, Marco and Topputo, Francesco}, title = {Direct-Indirect Hybrid Strategy for Optimal Powered Descent and Landing}, year = {2023}, doi = {10.2514/6.2023-2502}, booktitle = {AIAA Scitech 2023 Forum}, pages = {1--24}, isbn = {978-1-62410-699-6}, }