Miniaturized wireless water content and conductivity soil sensor system. - Cristina Rusu; Anatol Krozer; Christer Johansson; Fredrik Ahrentorp; Torbjörn Pettersson; Christian Jonasson; John Rösevall; Dag Ilver; Mattia Terzaghi; Donato Chiatante; Antonio Montagnoli (Comput. Electron. Agric., 2019)