Of Shells and Their Master May, 2003 By Kurt H. Gerstle, Albert W. Knott, Michael H. Barrett and Dr. Mark Ketchum In Articles, Great Achievements By some of his disciples… This article is currently only available in PDF format, please click the link to the top right. About the author ⁄ Kurt H. Gerstle Prev Specialty Structural Engineers Next Accommodating Building Deflections