TY - BOOK T1 - Digital Value-Adding Chains in Vocational Education: Automatic Keyword Extraction from Learning Videos to Provide Learning Resource Recommendations Y1 - 2020 A1 - Sven Manske A1 - Cleo Schulten A1 - Sven Manske A1 - Angela Langner-Thiele A1 - H. Ulrich Hoppe UR - http://doi.org/10.1007/978-3-030-57717-9_2 ER -