| article html file updated | 7 February 2020 16:45 CET | Update | https://www.mdpi.com/2079-6412/6/4/50 |
| article html file updated | 22 September 2019 03:38 CEST | Update | N/A |
| article html file updated | 5 May 2019 00:55 CEST | Update | N/A |
| article html file updated | 28 December 2016 08:30 CET | Update | N/A |
| article html file updated | 21 October 2016 08:53 CEST | Original file | N/A |
| article xml uploaded. | 21 October 2016 08:52 CEST | Update | https://www.mdpi.com/2079-6412/6/4/50/xml |
| article xml uploaded. | 21 October 2016 08:52 CEST | Original file | N/A |
| article pdf uploaded. | 21 October 2016 08:52 CEST | Version of Record | https://www.mdpi.com/2079-6412/6/4/50/pdf |
