| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Direct Integral Theory | Hardcover | 978-1-138-44180-4 (1-138-44180-5) | 2017 |
| Direct Integral Theory | Paperback | 978-0-8247-6971-0 (0-8247-6971-6) | 1980 |
A N · A. Nielsen · o.A. · Oluf August Nielsen · Olufsen, Aksel Nielsen · Otto A. Nielsen