| |
| 1993 | ||
|---|---|---|
| 2 | EE | Richard R. N. Eller: A Modern APL Windows User Interface with DOS Downwards Compatibility: the Solution for two Years Onwards. APL 1993: 88-96 |
| 1991 | ||
| 1 | EE | Richard R. N. Eller: How to Manage Large APL Projects: A User Interface Management System Approach. APL 1991: 150-160 |