424B1 | Form of prospectus that discloses information previously omitted from the prospectus | Dec 12, 1995 |     |
S-3/A | Pre-effective amendment to an S-3 filing | Dec 7, 1995 |     |
S-3/A | Pre-effective amendment to an S-3 filing | Nov 15, 1995 |     |
S-3 | Simplified registration form | Nov 8, 1995 |     |
S-8 | Securities offered to employees pursuant to employee benefit plans | Aug 22, 1995 |    |