Application and Testing of the Extended-Kalman-Filtering Technique for Determining the Planetary Boundary-Layer Height over Athens, Greece - Kokkalis, P.; Alexiou, D.; Papayannis, A.; Rocadenbosch, F.; Soupiona, O.; Raptis, P.-I.; Mylonaki, M.; Tzanis, C.G.; Christodoulakis, J. (Boundary-Layer Meteorology, 2020)