@book {Sven_Manske_79934987, title = {Digital Value-Adding Chains in Vocational Education: Automatic Keyword Extraction from Learning Videos to Provide Learning Resource Recommendations}, year = {2020}, doi = {10.1007/978-3-030-57717-9_2}, url = {http://doi.org/10.1007/978-3-030-57717-9_2}, author = {Sven Manske and Cleo Schulten and Sven Manske and Angela Langner-Thiele and H. Ulrich Hoppe} }