<em>Schmid, Josef: Balsthal, Lachstrocknerei Dyhrberg, 26.03.1975 (Com_L24-0168-0004-0007, <a href="http://doi.org/10.3932/ethz-a-001031563">http://doi.org/10.3932/ethz-a-001031563</a>)
<em>Schmid, Josef: Balsthal, Lachstrocknerei Dyhrberg, 26.03.1975 (Com_L24-0168-0004-0007, <a href="http://doi.org/10.3932/ethz-a-001031563">http://doi.org/10.3932/ethz-a-001031563</a>)
