Unstable Shelves Put the Shake in Shakespeare Jan, 2012 By Betsy Wilkinson, P.E., S.E. and Alberta Comer, MLS In Articles, Structural Forensics This article is currently only available in PDF format, please click the link to the top right. About the author ⁄ Betsy Wilkinson, P.E., S.E.Betsy Wilkinson, P.E., S.E. is a Principal and structural engineer with KIVA Structural Engineers. She may be contacted at kivase@cs.com. Prev Model Energy Code Development Next Concrete Specifications Education