| article html file updated | 6 February 2020 19:30 CET | Update | https://www.mdpi.com/1424-8220/15/6/13522 |
| article html file updated | 6 May 2019 18:09 CEST | Update | - |
| article html file updated | 26 March 2019 04:25 CET | Update | - |
| article html file updated | 21 August 2015 13:21 CEST | Update | - |
| article html file updated | 15 July 2015 05:36 CEST | Original file | - |
| article xml file uploaded | 15 July 2015 05:36 CEST | Original file | https://www.mdpi.com/1424-8220/15/6/13522/xml |
| article pdf uploaded. | 9 June 2015 11:21 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/6/13522/pdf |
