2ITU. ITU-R Recommendation P. 1546-2 : Methods for pointto-area predications for terrestrial services in the frequency range 30 MHz to 1000MHz[S].[S.l.] : ITU,2004.
3ITU. ITU-R Recommendation P.526-9 :Propagation by diffraction[S].[S.l.] : ITU, 2004.
