Snow removal and ice control technology: selected papers pr-esented at the Fourth International Symposium, Reno, Nevada-, august 11-16, 1996 / sponsored by Transportation Research- Board; Nevada Department of Transportation; American Assoc-iation of State Highway and Transportation Officials; World- Road Association-PIARC; Federal Highway Administration - Washington, D.C. : TRB - [169] p. - Conference proceedings ; 16 / Transportation Research Board .