May by the indication of the web site of the CNEK (Norman Centre for Karst Study - Centre Normand d'Etude du Karst) is wrong. Can you control it, please. best regards Joel
May by the indication of the web site of the CNEK (Norman Centre for Karst Study - Centre Normand d'Etude du Karst) is wrong. Can you control it, please. best regards Joel