<em>Schmid, Josef: Balsthal, Lachstrocknerei Dyhrberg, 26.03.1975 (Com_L24-0168-0002-0007, <a href="http://doi.org/10.3932/ethz-a-001031552">http://doi.org/10.3932/ethz-a-001031552</a>)
<em>Schmid, Josef: Balsthal, Lachstrocknerei Dyhrberg, 26.03.1975 (Com_L24-0168-0002-0007, <a href="http://doi.org/10.3932/ethz-a-001031552">http://doi.org/10.3932/ethz-a-001031552</a>)
