TY  - RPRT
TI  - Robust nonlinear data smoothers: Definitions and recommendations.
AU  - P F Velleman
PY  - 1977
DO  - 10.1073/pnas.74.2.434
UR  - https://pubmed.ncbi.nlm.nih.gov/16592388/
ID  - 16592388
ER  -