books.google.com - The main subject of the book is the full understanding of Weyl's formula for the volume of a tube, its roots and its implications. Another discussed approach to the study of volumes of tubes is the computation of the power series of the volume of a tube as a function of its radius. The chapter on mean...http://books.google.com/books/about/Tubes.html?id=kDNLR_a51jMC&utm_source=gb-gplus-shareTubes