![PDF) External Border Control Techniques in the EU as a Challenge to the Principle of Non-Refoulement PDF) External Border Control Techniques in the EU as a Challenge to the Principle of Non-Refoulement](https://i1.rgstatic.net/publication/354038969_External_Border_Control_Techniques_in_the_EU_as_a_Challenge_to_the_Principle_of_Non-Refoulement/links/612072ce0c2bfa282a5cdc4c/largepreview.png)
PDF) External Border Control Techniques in the EU as a Challenge to the Principle of Non-Refoulement
![Interviews with Our Editors: Vienna and Beyond, Expanding Horizons and New Opportunities with Alice Fremuth-Wolf - Kluwer Arbitration Blog Interviews with Our Editors: Vienna and Beyond, Expanding Horizons and New Opportunities with Alice Fremuth-Wolf - Kluwer Arbitration Blog](https://wolterskluwerblogs.com/arbitration/wp-content/uploads/sites/48/2021/12/AFW-300x200.jpg)
Interviews with Our Editors: Vienna and Beyond, Expanding Horizons and New Opportunities with Alice Fremuth-Wolf - Kluwer Arbitration Blog
![Barbara CASPERS | Professor | Professor | Bielefeld University, Bielefeld | Department of Behavioural Ecology | Research profile Barbara CASPERS | Professor | Professor | Bielefeld University, Bielefeld | Department of Behavioural Ecology | Research profile](https://i1.rgstatic.net/ii/profile.image/272497144758292-1441979790678_Q512/Barbara-Caspers.jpg)
Barbara CASPERS | Professor | Professor | Bielefeld University, Bielefeld | Department of Behavioural Ecology | Research profile
![Water | Free Full-Text | Density and Diversity Differences of Contemporary and Subfossil Cladocera Assemblages: A Case Study in an Oxbow Lake Water | Free Full-Text | Density and Diversity Differences of Contemporary and Subfossil Cladocera Assemblages: A Case Study in an Oxbow Lake](https://www.mdpi.com/water/water-14-02149/article_deploy/html/images/water-14-02149-g001.png)