@Article{npg-8-175-2001, AUTHOR = {Chang, T.}, TITLE = {An example of resonances, coherent structures and topological phase transitions - the origin of the low frequency broadband spectrum in the auroral zone}, JOURNAL = {Nonlinear Processes in Geophysics}, VOLUME = {8}, YEAR = {2001}, NUMBER = {3}, PAGES = {175--180}, URL = {http://www.nonlin-processes-geophys.net/8/175/2001/}, ISSN = {1023-5809} }