Editorial 
          1. Edmundas Kazimieras Zavadskas, Tatjana Vilutienė:  
            Operations research in areas of 
            civil engineering and sustainable development: 
            EURO working group activities 
          2. Naďa Antošová: 
            Rules for the effective maintenance of buildings and Maintenance of etics system with biocorrosion 
          3. Ivana Šandrk Nukić, Nenad Šuvak:   
            Impact of human resources management on business result of Croatian construction companies 
          4. Dosumu Oluwaseun Sunday, Adenuga Olumide Afolarin: 
            Causes, effects and remedies 
            of errors in Nigerian construction documents 
          5. Mária Kozlovská, Marcela Spišáková: 
            Contruction waste generation across construction project life-cycle 
          6. Simo Suđić, Goran Ćirović, Snežana Mitrović: 
            Risk analysis and management on Public Private Partnership Projects (PPP) in Serbia 
          7. João Pedro Júlio, Anabela Paiva, Caroline Dominguez: 
            Overall aspects for the evaluation 
            of Portuguese dwellings’ quality and sustainability 
          8. Renata Kozik, Edyta Plebankiewicz: 
            Bid documentation in public procurement in Poland 
          9. Ibrahim Mahamid: 
            Frequency of time overrun causes in road construction in Palestine: Contractors’ View 
          10. Ayman Ahmed Ezzat Othman: 
            Challenges of mega construction projects in developing countries 
          11. Ameh Oko John, Daniel Emmanuel Itodo: 
            Professionals’ views of material wastage on construction sites 
            and cost overruns 
            
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