Search for: [Subject and Keywords = monuments \- conservation and restoration] OR [Subject and Keywords = protection of monuments] OR [Subject and Keywords = permanent ruins] OR [Subject and Keywords = zabytki \- konserwacja i restauracja] OR [Subject and Keywords = ochrona zabytków] OR [Subject and Keywords = trwałe ruiny] OR [Title = Guidelines for elaboration of plans of management, use and protection of historic ruins] OR [Creator = Szmygin, Bogusław et al.]