TY - RPRT TI - Mass quantity gauging by RF mode analysis AU - Collier, R S AU - Ellerbruch, Doyle AU - Cruz, J E AU - Stokes, Robert W AU - Peterson, R Gordon AU - Hiester, A E PY - 1973 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 73-318 DO - 10.6028/NBS.IR.73-318 ER -