TY  - GEN
AU  - Jentzsch,Gerhard
AU  - Calvache,Marta
AU  - Bermúdez,Arturo
AU  - Ordoñez,Milton
ED  - International symposium on andean geodynamics, 4
TI  - Microgravity and GPS at Galeras volcano, Columbia: establishment of a new network and first measurements
N1  - bibliogr. p 380
ER  -