The optical design of the 40-in. telescope and of the Irénée DuPont telescope at Las Campanas Observatory, Chile. Bowen, I. S. ; Vaughan, A. H., Jr. Abstract Publication: Applied Optics Pub Date: 1973 DOI: 10.1364/AO.12.001430 Bibcode: 1973ApOpt..12.1430B