@article{oai:asahi-u.repo.nii.ac.jp:00003415,
 author = {Nagashima, K. and Fujimoto, K. and Morishita, Isao},
 issue = {A11},
 journal = {Journal of Geophysical Research},
 month = {Nov},
 note = {application/pdf},
 pages = {21,419--21,427},
 title = {Interplanetary magnetic field collimated cosmic ray flow across magnetic shock from inside of Forbush decrease, observed as local-time-dependent precursory decrease on the ground.},
 volume = {99},
 year = {1994}
}