New algorithms and techniques for computing with geometrically continuous spline curves of arbitrary degree H.-P. Seidel (1992) ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique
New Bounds for Lower Envelopes in Three Dimensions, with Applications to Visibility in Terrains. M. Sharir, D. Halperin (1994) Discrete & computational geometry
Note on symmetric alteration of knots of B-spline curves. Szilágyi, Ibolya (2005) Annales Mathematicae et Informaticae
NP-harte Probleme für minimale Polygonüberdeckungen H.-D. Hecker, D. Herwig (1988) Beiträge zur Algebra und Geometrie = Contributions to algebra and geometry