TY  - RPRT
TI  - Nonparametric maximum likelihood estimation of probability densities by penalty function methods
AU  - Demontricher, G. F.
AU  - Tapia, R. A.
AU  - Thompson, J. R.
PY  - 1974
UR  - https://ntrs.nasa.gov/citations/19750022788
ID  - 19750022788
ER  -