@article{BorndoerferDaneckerWeiser2021, author = {Ralf Bornd{\"o}rfer and Fabian Danecker and Martin Weiser}, title = {A Discrete-Continuous Algorithm for Free Flight Planning}, journal = {Algorithms}, volume = {14}, number = {1}, pages = {4}, doi = {10.3390/a14010004}, year = {2021}, }