Papini, PPPapiniGrimani, CCGrimaniASI Sponsor2020-09-172020-09-171993-01-01https://hdl.handle.net/20.500.13025/124enObservations of Proton and Helium Spectra Near Solar Maximumconference paperhttp://adsabs.harvard.edu/full/1993ICRC....1..579P54dcce078580fe1368eeae2f