You tried going to https://www.bim-world.de/wp-content/uploads/2018/10/18-10-19_PM_BIM-World-MUNICH_Zukunft-der-digitalen-Bau-Immobilienwirt.-trifft-sich-in-M%C3%BCnchen.pdf, and it doesn't exist. All is not lost! You can search for what you're looking for.