Media type: E-Article Title: Sleep disturbances and mental strain in university students: results from an online survey in Luxembourg and Germany Contributor: Schlarb, Angelika A.; Claßen, Merle; Grünwald, Julia; Vögele, Claus imprint: Springer Science and Business Media LLC, 2017 Published in: International Journal of Mental Health Systems Language: English DOI: 10.1186/s13033-017-0131-9 ISSN: 1752-4458 Origination: Footnote: Access State: Open Access