You may also wish to search for items by Ojo.
Only one matching reference was found.
Davis, R.; Ojo, I.A.; Webb, M.L., Mass spectrometry of transition-metal «pi»-complexes, V.-Fragmentation and structure of chromium-coordinated [C7H8]+ and [C8H10]+ ions, Org. Mass Spectrom., 1978, 13, 547. [all data]