Myriam, if you go back a few posts, you will find a link from Marco Paolo, Paul's son, where you can download "Children of the Storm".
I met Paul in Basel ca 1982-3. I recall his powerful voice, small Martin guitar and his store of busking tales. There were a couple of other old timers there too. One was a big, red headed Irishman called Seamus, who could sing almost as powerfully as Paul and the other was Phil Free, whom we all know as "The Buskers' Pope". (He is a gifted street comedian, who has probably had some sort of influence on every street comedian to follow him, whether they know it or not.) Although they had many friends in common, Paul and Phil were meeting for the first time. I heard a lot of good stories that week, although my drinking capacity was nowhere near enough to spend a long time in their company!