TY - RPRT TI - Circular of the Bureau of Standards no. 528: characteristics and applications of resistance strain gages- proceedings of the NBS semicentennial symposium on resistance strain gages held at the NBS on November 8 and 9, 1951 PY - 1954 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS CIRC 528 DO - 10.6028/NBS.CIRC.528 ER -