div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader043vdocumentinreader043viewer2022040905624e27884d19c23ef82514b6html5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: IXth INTERNATIONAL SYMPOSIUM ON - vulcanospeleology src=https:reader043vdocumentinreader043viewer2022040905624e27884d19c23ef82514b6html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divpIXth INTERNATIONAL SYMPOSIUM ON VULCANOSPELEOLOGYp pEN - 231pdiv