TY - GEN AU - Shiotani, M. AU - Hirota, I. TI - Planetary wave-mean flow interaction in the stratosphere:a comparison between Northern and Southern Hemispheres KW - CIRCULAƇAO ESTRATOSFERICA KW - ONDAS ESTRATOSFERICAS KW - 551.513 KW - med KW - fre KW - 551.557(215-13)(21517) ER -