TY - RPRT TI - A program to compute three-dimensional subsonic unsteady aerodynamic characteristics using the doublet lattice method, L216 (DUBFLEX). Volume 2: Supplemental system design and maintenance document AU - Harrison, B. A. AU - Richard, M. PY - 1979 UR - https://ntrs.nasa.gov/citations/19790022977 ID - 19790022977 ER -