John R. Rice. Algorithm 525: ADAPT, Adaptive Smooth Curve Fitting [E2]. ACM Transactions on Mathematical Software, 4(1):82-94, 1978. [doi]
@article{Rice78, title = {Algorithm 525: ADAPT, Adaptive Smooth Curve Fitting [E2]}, author = {John R. Rice}, year = {1978}, doi = {10.1145/355769.355777}, url = {http://doi.acm.org/10.1145/355769.355777}, researchr = {https://researchr.org/publication/Rice78}, cites = {0}, citedby = {0}, journal = {ACM Transactions on Mathematical Software}, volume = {4}, number = {1}, pages = {82-94}, }