@article{KJM_2011_35_2_a9,
     author = {Bart Ons and Paul Verstraelen},
     title = {Some geometrical comments on vision and neurobiology},
     journal = {Kragujevac Journal of Mathematics},
     pages = {317 },
     publisher = {mathdoc},
     volume = {35},
     number = {2},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/KJM_2011_35_2_a9/}
}