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APA Citation
Denton, M. H., Borovsky, J. E., Stepanova, M., & Valdivia, J. A. (n.d.). preface: Unsolved problems of magnetospheric physics. Journal of geophysical research, 121(11), 10, 783–10, 785. http://access.bl.uk/ark:/81055/vdc_100039699299.0x000003