<em>Comet Photo AG: Rüsselsheim, Opelwerk, 01/1979 (Com_LC1470-033, <a href="http://doi.org/10.3932/ethz-a-001035205">http://doi.org/10.3932/ethz-a-001035205</a>)
<em>Comet Photo AG: Rüsselsheim, Opelwerk, 01/1979 (Com_LC1470-033, <a href="http://doi.org/10.3932/ethz-a-001035205">http://doi.org/10.3932/ethz-a-001035205</a>)
