共 8 条
[1]
DELOGNE P, 1969, ANNALES TELECOMMUN, V24, P405
[2]
FONTAINE J, 1973, THROUGH EARTH ELECTR
[3]
FOWLER EP, SC46AWG1 INT EL COMM
[4]
IKRATH K, 1958, USASRDL1964 TECHN RE
[5]
KRUGEL L, 1956, TELEFUNKEN Z, V29, P114
[6]
KUNZ H, 1972, MITTEILUNGEN ARBEITS
[8]
POINCELOT P, 1963, PRECIS ELECTROMAGNET, P83