1. Los Volcanes de Costa Rica: Geología, Historia, Riqueza Natural y du Gente;Alvarado,2009
2. Are the ashes from the latest eruptions (2010–2016) at Turrialba volcano (Costa Rica) related to phreatic or phreatomagmatic events?;Alvarado;J. Volcanol. Geotherm. Res.,2016
3. Acid sulphate alteration in a magmatic hydrothermal environment, Barton Peninsula, King George Island, Antarctica;Armstrong;Mineral. Mag.,1995
4. A review on phreatic eruptions and their precursors;Barberi;J. Volcanol. Geotherm. Res.,1992
5. Physical and Hydrologic-flow Properties of Fractures: Las Vegas, Nevada - Zion Canyon, Utah - Grand Canyon, Arizona - Yucca Mountain, Nevada, July 20–24, 1989, Field Trip Guidebook;Barton,1989