1.- A MATHEMATICAL TOOL TO ANALYZE RADIALLY SYMMETRICAL ORGANISMS AND ITS APPLICATION TO A NEW CAMERATE FROM UPPER ORDOVICIAN OF SOUTH WESTERN SPAIN UNIVERSITE CLAUDE BERNARD, DEPARTEMENT DE GEOLOGIE; LYON; FRA; FRANCE, 1999 Ver registro 2.- REPERCUSION DE LA TORMENTA "LOTHAR" EN LA CORNISA CANTABRICA MADRID: M. MED. AMBIENT, 2000 CALENDARIO METEOROLOGICO 2001 Ver registro