Multi-Lot Open Procedure For The Awarding Of Services Related To The Organization Of Educational Trips By School Institutions, Through The Signing Of A Framework Agreement With Several Economic Operators, Pursuant To Art. 59, Paragraph 4, Lett. B) Of The Legislative Decree. 36/2023 In Favor Of The Following School Institutions: Iis Ettore Majorana Of Seriate (Bg), Iis Enrico Fermi Of Mantova, Iis Giulio Natta Of Bergamo, Filippo Lussana Scientific High School Of Bergamo And Fabrizio De Andre' High School Of Human Sciences Of Brescia