@conferenceObjectPart{MennigKallederSchmidt_1995,
title={Preparation and characterisation of thermomechanical properties of sol-gel derived glasses in the PbO-SiO2-B2O3-ZnO system},
author={Mennig, Martin and Kalleder, Axel and Schmidt, Helmut K.},
doi={http://dx.doi.org/10.22028/D291-24492},
year={1995}
}