@article{10_21136_AM_1985_104125,
     author = {Karger, Adolf},
     title = {Projective plane motions with infinitely many straight trajectories},
     journal = {Applications of Mathematics},
     pages = {36--49},
     publisher = {mathdoc},
     volume = {30},
     number = {1},
     year = {1985},
     doi = {10.21136/AM.1985.104125},
     mrnumber = {0779331},
     zbl = {0566.53020},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.21136/AM.1985.104125/}
}