TY - RPRT TI - End of year report : micromechanical properties of beryllium and other instrument materials AU - Christ, Bruce W AU - Polvani, Robert S AU - Hocken, Robert J PY - 1978 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 78-1569 DO - 10.6028/NBS.IR.78-1569 ER -