1. Reflection of high-frequency radio waves in inhomogeneous ionospheric layers
2. Electromagnetic Interference and Environment;Hruska;Int. J. Circuits Syst. Signal Process.,2014
3. 3D visualization of radar coverage considering electromagnetic interference;Qiu;WSEAS Trans. Signal Process.,2014
4. http://www.qsl.net/ik3xtv
5. Detection of metastable atoms and molecules;Hotop,1996