| gdtwigg@netcentral.co.uk | |
| Alexey Cortext, Israel | aleshka@Cortext.co.il |
| David Bloch MRBLOCH ARCHIVE, Israel | mblsalt@ibm.net |
| George Twigg freelance salt research !, UK | gdtwigg@netcentral.co.uk |
| Joep Orbons Souterrains, The Netherlands | jorbons@xs4all.nl |
| Juan A. Echeverri Universidad Nacional, COLOMBIA (S.A.) | jechever@latino.net.co |
| Nadav Harel MRBLOCH ARCHIVE, Israel | nadav@cortext.co.il |