@conferenceObjectPart{HouMennigSchmidt_1994, title={Improvement of photofatigue resistance of spirooxazine entrapped in organic-inorganic composite synthesized via the sol-gel process}, author={Hou, Lisong and Mennig, Martin and Schmidt, Helmut K.}, isbn={0-8194-1612-6}, doi={http://dx.doi.org/10.22028/D291-24451}, year={1994} }