Protection of Highways against snow hazards in Iran. 1st of February to 30th of April 1960
Roch, A. (1960). Protection of Highways against snow hazards in Iran. 1st of February to 30th of April 1960. (Eidgenössisches Institut für Schnee- und Lawinenforschung: interner Bericht, Report No.: 332). Eidgenössisches Institut für Schnee- und Lawinenforschung.