Jésus Miguel Carnice, Wolfgang Dahmen. Convexity preserving interpolation and Powell-Sabin elements. Computer Aided Geometric Design, 9(4):279-289, 1992. [doi]
@article{CarniceD92,
title = {Convexity preserving interpolation and Powell-Sabin elements},
author = {Jésus Miguel Carnice and Wolfgang Dahmen},
year = {1992},
doi = {10.1016/0167-8396(92)90035-N},
url = {http://dx.doi.org/10.1016/0167-8396(92)90035-N},
researchr = {https://researchr.org/publication/CarniceD92},
cites = {0},
citedby = {0},
journal = {Computer Aided Geometric Design},
volume = {9},
number = {4},
pages = {279-289},
}