Nira Dyn Allison Heard Kai Hormann Nir Sharon Univariate subdivision schemes for noisy data with geometric applications. 85-104 2015 37 Comput. Aided Geom. Des. https://doi.org/10.1016/j.cagd.2015.06.003 db/journals/cagd/cagd37.html#DynHHS15