DELLA VALLE, MassimoMassimoDELLA VALLE2020-09-252020-09-252017978-1-58381-906-71050-3390http://hdl.handle.net/20.500.12386/27473We review the observational status of the Supernova/Gamma-Ray Burst connection. Long duration Gamma-ray Bursts are associated with a tiny fraction of SNe-Ib/c. Current estimates of the SN and GRB rates yield a ratio GRB/SNe-Ibc in the range ∼ 0.4%-3%.STAMPAenConference paperhttp://aspbooks.org/custom/publications/paper/511-0114.html2017ASPC..511..114DFIS/05 - ASTRONOMIA E ASTROFISICA