A scientific study by Serbian researchers will be used to conserve the Gateway Arch, St. Louis, Missouri, USA, the tallest monument made in the western hemisphere and the tallest arch ever built in the world. The study entitled "Corrosion characteristics of laser-cleaned surfaces on iron artefact" was done by researchers from the Central Institute for Conservation (CEC) and the Institute of Chemistry, Technology and Metallurgy (ICTM), University of Belgrade. Studies by the French-Greek and Chinese research teams will also be used. The Politika newspaper followed this success (link in Serbian).