TY - RPRT TI - Failure analysis of the WWVB tower AU - McCloskey, J D AU - McCowan, C N AU - Santoyo, R L PY - 2002 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 6619 DO - 10.6028/NIST.IR.6619 ER -