@article{TRSPY_1999_225_a12,
     author = {A. Joets and M. I. Monastyrskii and R. Ribotta},
     title = {Polyhedral and {Dihedral} {Caustics} in the~$\mathbb R^3$},
     journal = {Informatics and Automation},
     pages = {195--201},
     publisher = {mathdoc},
     volume = {225},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1999_225_a12/}
}