TY - RPRT TI - Heat transfer in a compact tubular heat exchanger with helium gas at 3.5 MPa AU - Olson, Douglas A AU - Glover, Michael P PY - 1990 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 3941 DO - 10.6028/NIST.IR.3941 ER -