@article{jue:17f,
author = 	 {N. Engleitner and B. J\"uttler},
title = 	 {Patchwork {B}-spline Refinement},
journal = 	 {Computer-Aided Design},
year =           {2017},
volume =         {90},
pages =          {168-179},
doi=             {10.1016/j.cad.2017.05.021},
}