Media type: E-Article Title: The College Completion Puzzle: A Hidden Markov Model Approach Contributor: Witteveen, Dirk; Attewell, Paul Published: Springer Science and Business Media LLC, 2017 Published in: Research in Higher Education, 58 (2017) 4, Seite 449-467 Language: English DOI: 10.1007/s11162-016-9430-2 ISSN: 0361-0365; 1573-188X Keywords: Education Origination: Footnote: