@article{JGG_2009_13_1_JGG_2009_13_1_a8,
     author = {G. F. B�r },
     title = {Two {Synthesis} {Methods} for {Non-Circular} {Cylindrical} {Gears}},
     journal = {Journal for geometry and graphics},
     pages = {101--112},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2009},
     url = {http://geodesic.mathdoc.fr/item/JGG_2009_13_1_JGG_2009_13_1_a8/}
}