005520000a22001690004500060000800000082001600008100002300024245006400047250000600111260003400117260000900151300000800160650007400168942000700242999001900249952011400268  a100  a551. 63 PET  aPetterssen, Sverre  aWeather analysis and forcasting VI motion and motionsystems  a2  aNewyork, Mc Graw-Hill Book Co  c1956  a425  aWeather forecasting/climate/equationsof motion/cyclones/frontogenesis  cBK  c353553d353553  00104070aKAUCOAVbKAUCOAVd2014-05-02l0o551. 63 PETpKAU_COAV-13985r2014-05-02 00:00:00w2014-05-02yBK