Grimselseen

<em>Friedli, Werner: Grimselseen, 03.11.1970 (LBS_H1-029223, <a href="http://doi.org/10.3932/ethz-a-000370341">http://doi.org/10.3932/ethz-a-000370341</a>) oder in sMapshot: <a href="https://smapshot.heig-vd.ch/map/?imageId=28009">https://smapshot.heig-vd.ch/map/?imageId=28009</a></em>