@misc { 90532, title = {The Tephra in the Carbonate Varved Bed of the Pianico Formation: Volcanology and Geochronology}, year = {2006}, month = {2006}, publisher = {CNR, Istituto per la Dinamica dei Processi Ambientali}, address = {Milano}, author = {Pinti, D.L. and Quidelleur, X. and Chiesa, S. and Ravazzi, C. and Gillot, Y.} }