@article{JGG_2018_22_2_JGG_2018_22_2_a8,
     author = {M. Stupel },
     title = {A {Triangle} {"Broken"} into {Four} {Triangles} -- the {Special} {Status} of the {Central} {Triangle}},
     journal = {Journal for geometry and graphics},
     pages = {253--256},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {2018},
     url = {http://geodesic.mathdoc.fr/item/JGG_2018_22_2_JGG_2018_22_2_a8/}
}