1.- 3D ANALYSIS OF S-WAVE PROPAGATION IN SOFT DEPOSITS AMERICAN SOCIETY OF CIVIL ENGINEERS; NEW YORK, NY; USA; UNITED STATES, 1999 Ver registro 2.- 3D ANALYSIS OF S-WAVE PROPAGATION IN SOFT DEPOSITS; DISCUSSION AND REPLY AMERICAN SOCIETY OF CIVIL ENGINEERS; NEW YORK, NY; USA; UNITED STATES, 2000 Ver registro 3.- A COMPREHENSIVE INTERPRETATION OF STRONG MOTIONS IN THE MEXICAN VOLCANIC BELT SEISMOLOGICAL SOCIETY OF AMERICA; BERKELEY, CA; USA; UNITED STATES, 2004 Ver registro 4.- A SYSTEMATIC METHOD FOR ANALYZING BOREHOLE RECORDINGS TO ESTIMATE THE WAVEFIELD IN THE LAKEBED ZONE IN MEXICO CITY SEISMOLOGICAL SOCIETY OF AMERICA; BERKELEY, CA; USA; UNITED STATES, 2000 Ver registro 5.- EXCITATION OF HIGH-FREQUENCY SURFACE WAVES WITH LONG DURATION IN THE VALLEY OF MEXICO AMERICAN GEOPHYSICAL UNION; WASHINGTON, DC; USA; UNITED STATES, 1999 Ver registro 6.- Excitation of surface waves in the Valley of Mexico Seismological Society of America; Berkeley, CA; USA; United States, 2007 Ver registro 7.- STRONG-MOTION OBSERVATION DEMONSTRATION OF THE LONG-PATH EFFECTS FROM THE PACIFIC OCEAN TO MEXICO CITY JAPANESE GROUP FOR THE STUDY OF NATURAL DISASTER SCIENCE; DOHOSHA; JPN; JAPAN, 1997 Ver registro 8.- THREE-DIMENSIONAL NON-LINEAR SOIL-BUILDING INTERACTION ANALYSIS IN THE LAKEBED ZONE OF MEXICO CITY DURING THE HYPOTHETICAL GUERRERO EARTHQUAKE WILEY & SONS; CHICHESTER-NEW YORK; USA; UNITED STATES, 1998 Ver registro