W. Sun, M. Dryer, C. D. Fry, C. S. Deehr, Z. Smith, S.‐I. Akasofu, М. Д. Карталев, K. G. Grigorov (2002). Real-time forecasting of ICME shock arrivals at L1 during the "April Fool’s Day" epoch: 28 March – 21 April 2001. Annales Geophysicae. https://doi.org/10.5194/angeo-20-937-2002