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@article{CMUC_1987__28_2_a14, author = {Karger, Adolf}, title = {Affine space motions with only plane trajectories}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {337--343}, publisher = {mathdoc}, volume = {28}, number = {2}, year = {1987}, mrnumber = {904758}, zbl = {0627.53005}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1987__28_2_a14/} }
Karger, Adolf. Affine space motions with only plane trajectories. Commentationes Mathematicae Universitatis Carolinae, Tome 28 (1987) no. 2, pp. 337-343. http://geodesic.mathdoc.fr/item/CMUC_1987__28_2_a14/