1.- A paleomagnetic study of the Basque Arc (Basque-Cantabrian Basin, western Pyrenees) Springer International; Berlin; DEU; Federal Republic of Germany, 2007 Continental extension Ver registro 2.- Absolute geomagnetic intensities between 900 and 1521 d.c.; case study of some pre-Columbian ceramics for Quiahuiztlan (Veracruz State, Mexico) American Geophysical Union; Washington, DC; USA; United States, 2007 AGU 2007 joint assembly Ver registro 3.- Absolute paleointensity determinations on late Miocene and Pliocene volcanic rocks from south-eastern Spain American Geophysical Union; Washington, DC; USA; United States, 2007 AGU 2007 joint assembly Ver registro 4.- Archaeomagnetic studies in Mesoamerica using non-conventional materials American Geophysical Union; Washington, DC; USA; United States, 2004 AGU 2004 fall meeting Ver registro 5.- Early Cretaceous absolute geomagnetic paleointensities from Arapey Formation (Uruguay) American Geophysical Union; Washington, DC; USA; United States, 2007 AGU 2007 joint assembly Ver registro 6.- ESTUDIO PALEOMAGNETICO Y PALEOINTENSIDAD DE LA TRANSICION GILBERT-GAUSS EN SECUENCIAS VOLCANICAS DEL SUR DE GEORGIA (CAUCASO) 2008 VII CONGRESO GEOLOGICO DE ESPAÑA, LAS PALMAS DE GRAN CANARIA, 14-18 JULIO, 2008 Ver registro 7.- Long-term variation of geomagnetic field strength; contributions from Latin America American Geophysical Union; Washington, DC; USA; United States, 2005 AGU 2005 joint assembly Ver registro 8.- New archeointensity results from Teotihuacan (central Mexico) American Geophysical Union; Washington, DC; USA; United States, 2007 AGU 2007 joint assembly Ver registro 9.- New contributions to the geomagnetic instability time scale; paleomagnetic study of Tequila and Ceboruco-San Pedro-Amado Nervo volcanic fields (Trans Mexican volcanic belt) American Geophysical Union; Washington, DC; USA; United States, 2005 AGU 2005 joint assembly Ver registro 10.- On the importance of cooling rate correction in volcanic rocks; case study of a single Xitle lava flow (central Mexico) American Geophysical Union; Washington, DC; USA; United States, 2005 AGU 2005 joint assembly Ver registro