TY - RPRT TI - Artificial star source for the OAO: progress report July 1, 1964 to September 30, 1964 AU - Sirota, D PY - 1964 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS RPT 8565 DO - 10.6028/NBS.RPT.8565 ER -