@other{https://resolver.caltech.edu/CaltechEQL:EQL-R-28, title = "Protection of works of art from photochemical smog", year = "2010", url = "https://resolver.caltech.edu/CaltechEQL:EQL-R-28", id = "record", doi = "10.7907/Z9QV3JGC" } @other{https://resolver.caltech.edu/CaltechEQL:EQL-M-24, title = "Protection of works of art from damage due to photochemical smog: progress report through September 1985", year = "2009", url = "https://resolver.caltech.edu/CaltechEQL:EQL-M-24", id = "record", doi = "10.7907/Z9H70CRP" }