ISBN 0821847538 books & textbook
The Selected Works of Sigurdur Helgason (The Selected Works, 22)
Gestur Olafsson and Henrik Schlichtkrull Gestur Olafsson Henrik Schlichtkrull
American Mathematical Society /2009-07-29 Hardcover / 715 Pages
isbn-10: 0821847538 / isbn-13: 9780821847534
