Analysis of Radio Wave Propagation for ISM 2.4 GHz Wireless Sensor Networks in Inhomogeneous Vegetation Environments. - Leire Azpilicueta; Peio López-Iturri; Erik Aguirre; Ignacio Mateo; José Javier Astrain; Jesús E. Villadangos; Francisco Falcone (Sensors, 2014)