@article{JGG_2006_10_2_JGG_2006_10_2_a1,
     author = {M. Hajja and H. Martini },
     title = {A {Note} on {Similar-Perspective} {Triangles}},
     journal = {Journal for geometry and graphics},
     pages = {133--136},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {2006},
     url = {http://geodesic.mathdoc.fr/item/JGG_2006_10_2_JGG_2006_10_2_a1/}
}