<em>Comet Photo AG: Rüsselsheim, Opelwerk, 01/1979 (Com_LC1470-017, <a href="http://doi.org/10.3932/ethz-a-001035189">http://doi.org/10.3932/ethz-a-001035189</a>)
<em>Comet Photo AG: Rüsselsheim, Opelwerk, 01/1979 (Com_LC1470-017, <a href="http://doi.org/10.3932/ethz-a-001035189">http://doi.org/10.3932/ethz-a-001035189</a>)
