| |
| 1998 | ||
|---|---|---|
| 2 | EE | Giovanni Sambin, Silvia Gebellato: A Preview of the Basic Picture: A New Perspective on Formal Topology. TYPES 1998: 194-207 |
| 1996 | ||
| 1 | John L. Bell, Silvia Gebellato: Precovers, Modalities and Universal Closure Operators in a Topos. Math. Log. Q. 42: 289-299 (1996) | |
| 1 | John L. Bell | [1] |
| 2 | Giovanni Sambin | [2] |