| article html file updated | 6 February 2020 19:23 CET | Update | https://www.mdpi.com/1424-8220/15/6/13121 |
| article html file updated | 6 May 2019 18:25 CEST | Update | - |
| article html file updated | 26 March 2019 04:10 CET | Update | - |
| article html file updated | 21 August 2015 13:10 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/1424-8220/15/6/13121/xml |
| article pdf uploaded. | 11 June 2015 08:56 CEST | Updated version of record | https://www.mdpi.com/1424-8220/15/6/13121/pdf |
| article pdf uploaded. | 4 June 2015 12:39 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/6/13121/pdf-vor |
