<em>Swissair Photo AG: Ecublens (VD), Thevenaz-Leduc, 04.06.1975 (LBS_IN-051446-01, <a href="http://doi.org/10.3932/ethz-a-000788201">http://doi.org/10.3932/ethz-a-000788201</a>)
<em>Swissair Photo AG: Ecublens (VD), Thevenaz-Leduc, 04.06.1975 (LBS_IN-051446-01, <a href="http://doi.org/10.3932/ethz-a-000788201">http://doi.org/10.3932/ethz-a-000788201</a>)
