TY - RPRT TI - Lumped mass modelling for the dynamic analysis of aircraft structures AU - Abu-Saba, Elias G. AU - Shen, Ji Yao AU - Mcginley, William M. AU - Montgomery, Raymond C. PY - 1992 UR - https://ntrs.nasa.gov/citations/19930010271 ID - 19930010271 ER -