Yeah, I'm aware of those guys. Back in the 80s we had monthly Mickey magazine(basically, our version of Topolino, I'm from Croatia) with assorted comics by Italian and American authors. But Cavazzano always stood out with his unique art style. Romano Scarpa was great too, and of course, any story by Carl Barks.
I think it was Cavazzano who drew first CYOA-style stories with multiple endings back in the mid 80s. That stuff was addicting as hell for us kids. We used to run to the newsstand on release day! It was the start of adventure gaming before we had our VCRs, C64s, Amigas, Nintendos, and waaay before anyone had a PC. Just numbered sheets of paper.