Pavelyev, A. G., Liou, Y. A., Wickert, J., Zhang, K., Wang, C. S., Kuleshov, Y. (2010): Analytical model of electromagnetic waves propagation and location of inclined plasma layers using occultation data. - Progress in Electromagnetics Research (PIER), 106, 177-202.https://doi.org/10.2528/PIER10042707