@Article{angeo-25-1721-2007,
AUTHOR = {Pchelkin, V. V. and Pchelkina, E. V. and Golovchanskaya, I. V.},
TITLE = {Anomalous behavior of cutoff rigidity variation in the region of the Mexico station during a magnetic superstorm on 20 November 2003},
JOURNAL = {Annales Geophysicae},
VOLUME = {25},
YEAR = {2007},
NUMBER = {8},
PAGES = {1721--1725},
URL = {https://angeo.copernicus.org/articles/25/1721/2007/},
DOI = {10.5194/angeo-25-1721-2007}
}