TY - RPRT TI - Soil moisture sensors for continuous monitoring AU - Saud A. Amer AU - T. O. Keefer AU - M.A. Weltz AU - David C. Goodrich AU - Leslie Bach PY - 2007 DO - 10.1111/j.1752-1688.1994.tb03274.x UR - https://pubs.usgs.gov/publication/70187027 ID - 70187027 ER -