@article{JGG_2001_5_2_a0,
     author = { I. Juhasz and M. Hoffmann},
     title = {The {Effect} of {Knot} {Modifications} on the {Shape} of {B-spline} {Curves}},
     journal = {Journal for geometry and graphics},
     pages = {111--12},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {2001},
     url = {http://geodesic.mathdoc.fr/item/JGG_2001_5_2_a0/}
}