Review of thermoelectric characterization techniques suitable for SiGe multilayer structuresStefano Cecchi, Lourdes Ferre Llin, Tanja Etzelstorfer and Antonio SamarelliEur. Phys. J. B, 88 3 (2015) 70DOI: https://doi.org/10.1140/epjb/e2015-50672-x