During the Winter Meeting of the ANTARES and KM3NeT Collaborations in Genoa (Italy), Uli Katz, Chairman of the Global Neutrino Network (GNN) awarded the 2020 GNN Dissertation Prize to Silvia Celli (Gran Sasso Science Institute & Univ. La Sapienza, Roma, Italy), member of the ANTARES and KM3NeT Collaborations, for her thesis supervised by F. Aharonian entitled “Gamma-Ray and Neutrino Signatures of Galactic cosmic-rays accelerators“.