Nira Gruberger, David Levin, Charles K. Chui. Adding flexibility to piecewise quadratic curves and surfaces. Computer Aided Geometric Design, 10(5):469-481, 1993. [doi]
@article{GrubergerLC93,
title = {Adding flexibility to piecewise quadratic curves and surfaces},
author = {Nira Gruberger and David Levin and Charles K. Chui},
year = {1993},
doi = {10.1016/0167-8396(93)90024-W},
url = {http://dx.doi.org/10.1016/0167-8396(93)90024-W},
researchr = {https://researchr.org/publication/GrubergerLC93},
cites = {0},
citedby = {0},
journal = {Computer Aided Geometric Design},
volume = {10},
number = {5},
pages = {469-481},
}