Characteristics of precursory decrease of forbush decrease inferred from world wide observations of muon and neutron intensities.

Morishita I., Fujimoto K., Fujii Z., Sakakibara S., Nagashima K., Munakata K., Yasue S., Humble J.E., Fenton K.B., Fenton A.G., Duldig M.L. (1997) Characteristics of precursory decrease of forbush decrease inferred from world wide observations of muon and neutron intensities, Proceedings of the 25th International Cosmic Ray Conference, Durban 1. 405-408;