Negotiated Procedure For The Award Of The Concession Of The Service Of Administration Of Pre-Packaged Food And Hot And Cold Drinks, Through The Installation And Management Of Automatic Vending Machines, At The University Residences And Administrative Offices Of Adisu Puglia - Territorial Office Of Foggia, Pursuant To Article 187 Of The Legislative Decree Of 31 March 2023, N. 36, Public Contracts Code.