Year is "1993"

Article

Bishop, I. and Styles, Peter and Allen, M. (1993) Mining-induced seismicity in the Nottinghamshire Coalfield. Quarterly Journal of Engineering Geology and Hydrogeology, 26 (4). pp. 253-279. DOI: https://doi.org/10.1144/GSL.QJEGH.1993.026.004.03

Joyner, William B. and Boore, David M. (1993) Methods for regression analysis of strong-motion data. Bulletin of the Seismological Society of America, 83 (2). pp. 469-487.