2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), Montreal. IEEE, Montreal, Canada: pp. 1-3; ISBN 978-90-825987-0-4
2017,
Ypsilantis P, Lambropoulou M, Karayiannakis A, Milicevic M, Bulajic P, Zacharoulis D, Sioka E, Simopoulos C