@article{JGG_2008_12_2_JGG_2008_12_2_a3,
     author = {P. Pech },
     title = {Computation with {Pentagons}},
     journal = {Journal for geometry and graphics},
     pages = {151--16},
     publisher = {mathdoc},
     volume = {12},
     number = {2},
     year = {2008},
     url = {http://geodesic.mathdoc.fr/item/JGG_2008_12_2_JGG_2008_12_2_a3/}
}