TY - RPRT TI - Differential displacements and spectra for the April 26, 1981 Westmorland and the January 26, 1986 Hollister earthquakes AU - G.N. Bycroft AU - P. N. Mork PY - 1987 DO - 10.3133/ofr8762 UR - https://pubs.usgs.gov/publication/ofr8762 ID - ofr8762 ER -