Cooperative knowledge spaces have a high potential to improve eLTR (eLearning, eTeaching and eResearch) at universities. Since there are few implementations deployed, notably in the fields of mathematics, natural sciences, and engineering, we propose a concept for field-specific knowledge spaces for those disciplines - "ViCToR"-Spaces (Virtual Cooperation in Teaching and Research for Mathematics, Natural Sciences and Engineering). ViCToR-Spaces present novel collaborative working environments for knowledge gain and research, supporting well-established forms of scientific and technological cooperation without geographical or technological boundaries. In this article, we will describe the requirements for ViCToR-Spaces, the components that are already available, and further developments.