Bibliography ============= 1. "Amortization": Françoise GANTENBEIN and Michel LIVOLANT (CEA - DMT) in "Earthquake Engineering" Collective work - Presses de l'E.N.P.C. (1985) 2. "Depreciation in structural calculations": Forum IPSI - 2 AS Forum - 2 AS Volume XVIII No. 2 (June 1994)