| article html file updated | 6 February 2020 15:57 CET | Update | https://www.mdpi.com/1424-8220/15/2/4425 |
| article html file updated | 9 January 2020 09:26 CET | Update | - |
| article html file updated | 20 September 2019 17:57 CEST | Update | - |
| article html file updated | 7 May 2019 00:59 CEST | Update | - |
| article html file updated | 25 March 2019 21:46 CET | Update | - |
| article html file updated | 29 June 2017 13:18 CEST | Update | - |
| article html file updated | 21 August 2015 07:40 CEST | Update | - |
| article html file updated | 19 March 2015 07:45 CET | Original file | - |
| article xml file uploaded | 19 March 2015 07:45 CET | Original file | https://www.mdpi.com/1424-8220/15/2/4425/xml |
| article pdf uploaded. | 13 February 2015 11:42 CET | Version of Record | https://www.mdpi.com/1424-8220/15/2/4425/pdf |
