@article{article, title  = {{Changes in the ultra-low frequency wave field during the precursor phase to the Sichuan earthquake: DEMETER observations}},

 url = {{}},

 year = {{2013}},

 month = {{9}},

 author = {{Walker SN and Kadirkamanathan V and Pokhotelov OA}},

 doi = {{10.5194/angeo-31-1597-2013}},

 volume = {{31}},

 journal = {{Annales Geophysicae}},

 issue = {{9}},

 pages = {{1597-1603}},

 note = {{Accessed on 2025/12/05}}}