{"id":"000377526","type":"book","title":"The mathematical basis for the evaluation of curvatures","pages":"105-112","container-title":"Appearance and essence. Refinements of classical architecture. Curvature. Proceedings of the Second Williams Symposium on Classical Architecture held at the University of Pennsylvania, Philadelphia, April 2 - 4, 1993","author":[{"family":"Seybold","given":"H."}]}