TY - GEN AU - Hayakawo, M. TI - Characteristics of dawnside midlatitude VLF emissions associated with substorms as deduced from the two-stationed direction-finding measurement KW - TEMPESTADES GEOMAGNETICAS KW - EMISSOES VLF KW - 551.594.6 KW - med KW - fre KW - 550.385.4 ER -