Titov, FedorFedorTitovFriedewald, AxelAxelFriedewald2025-10-242025-10-24201515th International Conference on Construction Applications of Virtual Reality, CONVR 2015https://hdl.handle.net/11420/58215enTechnology::620: EngineeringImproving the tender quality for retrofit projectsConference PaperConference Paper