| article html file updated | 8 February 2020 18:12 CET | Update | https://www.mdpi.com/2305-6304/5/4/25 |
| article html file updated | 27 September 2019 16:39 CEST | Update | - |
| article html file updated | 2 May 2019 21:52 CEST | Update | - |
| article html file updated | 3 January 2018 09:10 CET | Update | - |
| article html file updated | 11 October 2017 16:41 CEST | Original file | - |
| article xml uploaded. | 11 October 2017 16:39 CEST | Update | https://www.mdpi.com/2305-6304/5/4/25/xml |
| article xml uploaded. | 11 October 2017 16:39 CEST | Original file | - |
| article pdf uploaded. | 11 October 2017 16:39 CEST | Version of Record | https://www.mdpi.com/2305-6304/5/4/25/pdf |
