TY  - RPRT
TI  - Fortran '77 programs for computing data fitting functions based on a principle of minimum integrated squared curvature
AU  - R.D. Watts
PY  - 1982
DO  - 10.3133/ofr82831
UR  - https://pubs.usgs.gov/publication/ofr82831
ID  - ofr82831
ER  -