@conferenceObjectPart{HoffmannMennigSchmidtHou_1995,
title={Photochromic coatings derived by sol-gel processing from epoxysilane, bisphenol-a, 1-methylimidazole and spirooxazine},
author={Hoffmann, Bernd and Mennig, Martin and Schmidt, Helmut K. and Hou, Lisong},
isbn={7-8000-3343-0},
doi={http://dx.doi.org/10.22028/D291-24495},
year={1995}
}