@article{BAG_2000__41_1_120739,
     author = {Heinz, G\"unter},
     title = {The concept of cutting vectors for vector systems in the {Euclidean} plane.},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {181},
     publisher = {mathdoc},
     volume = {41},
     number = {1},
     year = {2000},
     zbl = {0953.52011},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/BAG_2000__41_1_120739/}
}