Thanks !! At first, I learned the basics with the sheet in his book "Re-introduction etudes". Then, I watched a lot of videos, especially these : ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-4oOwC0BTCJI.html + ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-rNocAKSqQNk.html :)
Hello ! I only have the Gonzales' book "Re-introduction etudes" in which you can find an easy and short version of the song. For the rest, I learned it by ear.