TY - RPRT TI - Helium heat transfer and refrigeration in support of magnetic fusion energy systems AU - Arp, V AU - Brennan, J A AU - Parrish, W R AU - Steward, W G AU - Steward, W G AU - Strobridge, T R AU - Voth, R O PY - 1978 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 78-877 DO - 10.6028/NBS.IR.78-877 ER -