@article{VeithLisowsky_1988, title={Polycyclic silylamides of Ge-2 and Sn-2 with different structures-bis(Germanediyl) versus distannate [Cyclic diazastannylenes ; 27]}, author={Veith, Michael and Lisowsky, Richard}, doi={http://dx.doi.org/10.22028/D291-22533}, year={1988} }