1787 20160525111146.0 10.1007/s00445-014-0885-8 DOI SISMOimport-357 Caudron, Corentin 2015 Kawah Ijen volcanic activity: a review Syahbana, Devy Kamil Lecocq, Thomas Van Hinsberg, Vincent McCausland, Wendy Triantafyllou, Antoine Camelbeeck, Thierry Bernard, Alain Surono, Surono Bulletin of Volcanology 77 3 http://link.springer.com/10.1007/s00445-014-0885-8 published in REFERD