"Selection Of Contractors For Engineering (Design, Author Supervision And Implementation Of Smr/Srr) For Energy Renovation Of Multi-Family Residential Buildings On The Territory Of So, District "Ilinden" In Connection With The Procedure "Support For Sustainable Energy Renovation Of The Residential Building Stock - Stage I" For Buildings Administrative Addresses, As Follows: Separate Position #2: City Of Sofia, Gh. Ilinden, Block 69, Entrance A And B."