| * | 2009 |
| 3 | EE | Yasunori Ishihara,
Takuji Morimoto,
Shougo Shimizu,
Kenji Hashimoto,
Toru Fujiwara:
A Tractable Subclass of DTDs for XPath Satisfiability with Sibling Axes.
DBPL 2009: 68-83 |
| 2008 |
| 2 | EE | Akinari Yamaguchi,
Shougo Shimizu,
Yasunori Ishihara,
Toru Fujiwara:
Bag-based data models for incomplete information and their closure properties.
J. Intell. Inf. Syst. 30(2): 115-135 (2008) |
| 2001 |
| 1 | | Yasunori Ishihara,
Shougo Shimizu,
Hiroyuki Seki,
Minoru Ito:
Refinements of Complexity Results on Type Consistency for Object-Oriented Databases.
J. Comput. Syst. Sci. 62(4): 537-564 (2001) |