@misc{indiciaed467db68b509, title = {Helium soil-gas variations associated with recent central California earthquakes: Precursor or coincidence?}, author = {G.M. Reimer}, year = {2012}, doi = {10.1029/gl008i005p00433}, url = {https://pubs.usgs.gov/publication/70011951}, note = {Source identifier: 70011951} }