@conferenceObjectPart{MennigNiegischKallederSchmidtGrafSautter_1999,
title={Fluorescent Er2O3 doped lead silicate glass for optical amplifiers},
author={Mennig, Martin and Niegisch, Nico and Kalleder, Axel and Schmidt, Helmut K. and Graf, Jürgen and Sautter, Helmut},
isbn={88-86538-18-6},
doi={http://dx.doi.org/10.22028/D291-24638},
year={1999}
}