共 4 条
- [1] RADIO PROPAGATION ABOVE 40-MC OVER IRREGULAR TERRAIN [J]. PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1957, 45 (10): : 1383 - 1391
- [2] OKUMURA Y, 1968, ECL REV, V16
- [3] YOUNG WE, 1952, BELL SYST TECH J, V31, P1008
- [4] 1966, CCIR3701 REC, V2, P24