Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2024. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ ENERGY RESEARCH AND DEVELOPMENT IN SWEDEN, 1978-1981 https://trid.trb.org/View/143864 Tue, 11 Feb 2003 00:00:00 GMT https://trid.trb.org/View/143864 FUEL SAVINGS WITH CONVENTIONAL HOT WATER SPACE HEATING SYSTEMS BY INCORPORATING A NATURAL GAS POWERED HEAT PUMP. PRELIMINARY PROJECT: DEVELOPMENT OF HEAT PUMP TECHNOLOGY https://trid.trb.org/View/170581 Tue, 23 Nov 1982 00:00:00 GMT https://trid.trb.org/View/170581