@article{JGG_2023_27_1_JGG_2023_27_1_a5,
     author = {H. Hagen },
     title = {Enforcing {Surface} {Rigidity} by {Shadow-Line} {Constraints}},
     journal = {Journal for geometry and graphics},
     pages = {59--67},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {2023},
     url = {http://geodesic.mathdoc.fr/item/JGG_2023_27_1_JGG_2023_27_1_a5/}
}