TY  - RPRT
TI  - Construction of Covariance Functions with Variable Length Fields
AU  - Gaspari, Gregory
AU  - Cohn, Stephen E.
AU  - Guo, Jing
AU  - Pawson, Steven
PY  - 2005
UR  - https://ntrs.nasa.gov/citations/20050156903
ID  - 20050156903
ER  -