TY - RPRT TI - Helium research in support of superconducting power transmission : annual report (October 1977- September 1978) AU - Daney, D E PY - 1979 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 79-1618 DO - 10.6028/NBS.IR.79-1618 ER -