TY  - RPRT
TI  - Estimating the covariance function with functional data.
AU  - Sik-Yum Lee
AU  - Wenyang Zhang
AU  - Xin-Yuan Song
PY  - 2002
DO  - 10.1348/000711002760554570
UR  - https://pubmed.ncbi.nlm.nih.gov/12473227/
ID  - 12473227
ER  -