Am Sa., 5. Dez. 2020 um 21:37 Uhr schrieb Volker Schmidt <vosc...@gmail.com >:
> Traffic lights triggered by avalanches! Is that close enough, Martin? > > > https://elearning.unipd.it/scuolaamv/pluginfile.php/19629/mod_resource/content/1/04_02%20difesa%20dalla%20valanghe.pdf > I knew you would deliver :) interesting presentation, thank you Volker Cheers, Martin
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