@MISC {weir_patent98, title = "Moisture and Salinity Sensor and method of use. European patent EP 0 552 275 B1. Filed October 1991, granted July 1998.", author = "P.C. Weir and K.A. Watson and R. Gatto and P. Buss", annote = "type=patent", month = "July", year = "1998" }