Suprathermal proton and α-particle bursts (E/q = 6.5–225 keV/e) observed by the WIND-, ACE- and IMP8–S/C during depressions of the interplanetary magnetic fieldE. Kirsch and U. MallA&A, 400 2 (2003) 729-736DOI: https://doi.org/10.1051/0004-6361:20021835