Philippe Schnoebelen, 26 Mar 1995
Luigi Ceriani (1894-1969) can be considered one of the founders of modern RA, with Fabel and others. His two treatises on RA are a must. They are "32 Personaggi e 1 Autore" (1955, 657 pages) and "La Genesi delle Posizioni" (1961, 290 pages).
Recently, Mario Velucchi informed me that the books can still be obtained today from Ceriani's grandson: Dr. PierLuigi Molinari; Via Soave 5; 20135 Milano; Italy; Tel +39-2-58309137.