TY - GEN AU - Petersen, Stephen R AU - Barnes, Kimberly A AU - Kelly, George E C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1981-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.81-2241 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1981 TI - Engineering - economic analysis of improved heat pump performance for minimum standards development: ER -