@article{HoebbelWeberSchmidtKrüger_2002, title={Synthesis and properties of perfluoroalkyl groups containing double four-ring spherosilicate (siloxysilsesquioxane) precursors}, author={Hoebbel, Dagobert and Weber, Christine and Schmidt, Helmut K. and Krüger, Ralph-Peter}, doi={http://dx.doi.org/10.22028/D291-24700}, year={2002} }