Conclusions ........................................................................... p. 451 C.1.2.5.1 Part de PAUL ........................................................... p. 451 C.1.2.5.2 Part d'OLIVIER ....................................................... p. 452 C.1.2.5.3 Part d'ALBERT ....................................................... p. 452 C.1.2.5.4 Part de LUCIEN ....................................................... p. 454 C.1.2.5.5 Part de JEAN ........................................................... p. 457 C.1.2.5.6 Part de MARCEL