Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2026. 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/ STRENGTH OF ICE AND ICE COVER (NATURE RESEARCH ON THE RIVERS OF SIBERIA) https://trid.trb.org/View/8075 Fri, 02 Mar 1973 00:00:00 GMT https://trid.trb.org/View/8075 A STUDY OF THE HARDNESS OF ICE https://trid.trb.org/View/1557 Sat, 13 May 1972 00:00:00 GMT https://trid.trb.org/View/1557