Robuta

https://dggs.alaska.gov/pubs/id/27506 Bevis, M.G., 1982 - Hypocentral trend surface analysis: regional and fine structure of selected... https://pubs.usgs.gov/of/1999/ofr-99-0023/ HYPOELLIPSE: A Computer Program for Determining Local Earthquake Hypocentral Parameters, Magnitude,... This report provides Fortran source code and program manuals for HYPOELLIPSE, a computer program for determining hypocenters and magnitudes of near regional... computer program