1. O. S. Verheijen R.G.C. Beerkcns O.M.G.C. Op den Camp Thermal Heat Conductivity of Glass Forming Batches 2002
2. Uber das Warmeleitvermogen des einschmelzenden Glasgemcnges;Kroger;Glastech. Ber.,1959
3. G.C.J. Bart Thermal Conduction in Nonhomogeneow and Phase Change Media 1994