Media type: Electronic Journal Title: Heliyon Published: London [u.a.]: Elsevier, 2015- Publication information: 1.2015 - Language: English ISSN: 2405-8440 Keywords: Zeitschrift Origination: Footnote: In SLUB collection: Elsevier DEAL Core Gold: 1.2015 - In further SLUB collection: Access State: Open Access Rights information: Attribution - Non Commercial - No Derivs (CC BY-NC-ND)