| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The History of Approximation Theory | 978-0-8176-7075-7 (0-8176-7075-0) | 2008 |
| The History of Approximation Theory: From Euler to Bernstein | 978-0-8176-4353-9 (0-8176-4353-2) | 2005 |
G.S. · K Georg · K S · K. Steffens · Karl G. · Karl Georg