TY - RPRT TI - Spatial design and strength of spatial signal: Effects on covariance estimation AU - Kathryn M. Irvine AU - Alix I. Gitelman AU - Jennifer A. Hoeting PY - 2007 DO - 10.1198/108571107x249799 UR - https://pubs.usgs.gov/publication/70169992 ID - 70169992 ER -