| 2006 |
| 7 | EE | Koji Kagawa:
Polymorphic variants in Haskell.
Haskell 2006: 37-47 |
| 6 | | Koji Kagawa:
Creating Animations in SVG format for Visualizing Program Execution.
ICCE 2006: 551-554 |
| 2005 |
| 5 | | Naoki Yanagisawa,
Kenichi Takai,
Koji Kagawa,
Hiroyuki Tarumi:
An Eclipse Plug-in for SVG Animations in an Educational System for Programming.
ICCE 2005: 938-941 |
| 2002 |
| 4 | | Koji Kagawa:
Shrinkable Polymorphic Variants.
APLAS 2002: 1-15 |
| 2001 |
| 3 | EE | Koji Kagawa:
Monadic Encapsulation with Stack of Regions.
FLOPS 2001: 264-279 |
| 1999 |
| 2 | EE | Koji Kagawa:
Programming with Explicit Regions.
ASIAN 1999: 377-378 |
| 1997 |
| 1 | | Koji Kagawa:
Compositional References for Stateful Functional Programming.
ICFP 1997: 217-226 |