TY  - BOOK
AU  - Davis, David, coaut.
ED  - National Research Council. Transportation Research Board (E-.U.A.)
TI  - Track-related research: volume 1. broken rail detection * c-ontrol of wheel/rail friction * wide-gap welding techniques- / David Davis...[et al.]
CY  - Washington, D.C. : TRB
N1  - "A compendium of three reports on Joint Track-Related Resea-rch with the Association of American Railroads/Transportati-on Technology Center, Inc."
ER  -