Energy spectra of 50-keV to 20-MeV protons accelerated at corotating interaction regions at Ulysses - Desai,MI; Marsden,RG; Sanderson,TR; Lario,D; Roelof,EC; Simnett,GM; Gosling,JT; Balogh,A; Forsyth,RJ (JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1999)