Book Title :
Carrières souterraines, IIe symposium International sur les carrières Souterraines Authors :
Collective Publisher : DMI Year :
1991 ISBN :
French Description :
Resume of the Second International Symposium on Underground Quarries (Meudon, july 8-13th 1989).
Very iusefull book : lots of maps, plans and black and white photographs and also a good bibliography and numerous addresses of people involved in the study of underground networks all over the world.
Mostly in French but some texts in other languages. Available at :