| BYTE | Volume 9, issue 12 (November, 1984) | Mathematical Recreations: Toggling Functions | 
| Volume 10, issue 1 (January, 1985) | Mathematical Recreations: The Fundamental Counting Principle | 
| This page has been created by Sami Rautiainen. | |
| Read the small print. | Last updated Jul 05, 2003 |