@article{10_21136_AM_1987_104240,
     author = {Karger, Adolf},
     title = {Two-parametric motions in $E_3$},
     journal = {Applications of Mathematics},
     pages = {96--119},
     publisher = {mathdoc},
     volume = {32},
     number = {2},
     year = {1987},
     doi = {10.21136/AM.1987.104240},
     mrnumber = {0885757},
     zbl = {0621.53010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1987.104240/}
}