@article{10_21136_AM_1989_104341,
     author = {Karger, Adolf},
     title = {Classification of projective space motions with only plane trajectories},
     journal = {Applications of Mathematics},
     pages = {133--145},
     publisher = {mathdoc},
     volume = {34},
     number = {2},
     year = {1989},
     doi = {10.21136/AM.1989.104341},
     mrnumber = {0990300},
     zbl = {0678.53009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1989.104341/}
}