TY - RPRT TI - Imaging performance of multilayer X-ray mirrors AU - Spiller, Eberhard AU - Wilczynski, Janusz AU - Stearns, Daniel AU - Golub, Leon AU - Nystrom, George PY - 1992 UR - https://ntrs.nasa.gov/citations/19930026254 ID - 19930026254 ER -