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 Here you can find the slides used during the master level course *Advanced Topics in Communication Networks* at ETH Zürich grouped by year. Notice that the content covered changes from year to year to address specific technologies.
 
-- The slides from the [2021 course]((https://adv-net.ethz.ch/2021/)) are [available here](https://polybox.ethz.ch/index.php/s/rJcE2qIFlgrr1e7).
+- The slides from the [2021 course](https://adv-net.ethz.ch/2021/) are [available here](https://polybox.ethz.ch/index.php/s/rJcE2qIFlgrr1e7).
 - [2020](./2020) contains slides from the 2020 course [website](https://adv-net.ethz.ch/2020/).
 - [2019](./2019) contains slides from the 2019 course [website](https://adv-net.ethz.ch/2019/).
 - [2018](./2018) contains slides from the 2018 course [website](https://adv-net.ethz.ch/2018/).