Chao Zeng, Fang Deng, Jiansong Deng. Bicubic hierarchical B-splines: Dimensions, completeness, and bases. Computer Aided Geometric Design, 38:1-23, 2015. [doi]
@article{ZengDD15, title = {Bicubic hierarchical B-splines: Dimensions, completeness, and bases}, author = {Chao Zeng and Fang Deng and Jiansong Deng}, year = {2015}, doi = {10.1016/j.cagd.2015.07.002}, url = {http://dx.doi.org/10.1016/j.cagd.2015.07.002}, researchr = {https://researchr.org/publication/ZengDD15}, cites = {0}, citedby = {0}, journal = {Computer Aided Geometric Design}, volume = {38}, pages = {1-23}, }