@misc{indiciae4188713a1d0d, title = {Measured crustal deformation in Imperial Valley, California}, author = {B. E. Lofgren}, year = {1979}, doi = {10.1016/0375-6505(79)90050-6}, url = {https://pubs.usgs.gov/publication/70012509}, note = {Source identifier: 70012509} }