TY - RPRT TI - Deformation and stress-change modeling at Sierra Negra volcano, Galapagos, from ENVISAT INSAR and GPS observations AU - Sigurjon Jonsson AU - W.W. Chadwick AU - Michael Poland AU - D. Geist PY - 2008 UR - https://pubs.usgs.gov/publication/70009725 ID - 70009725 ER -