| |
| 1980 | ||
|---|---|---|
| 3 | EE | Walter E. Ulrich: Office automation. AFIPS National Computer Conference 1980: 483 |
| 2 | EE | Walter E. Ulrich: Introduction to electronic mail. AFIPS National Computer Conference 1980: 485-488 |
| 1 | EE | Walter E. Ulrich: Implementation considerations in electronic mail. AFIPS National Computer Conference 1980: 489-492 |