| article html file updated | 7 February 2020 20:09 CET | Update | https://www.mdpi.com/2079-3197/5/1/1 |
| article html file updated | 22 September 2019 14:23 CEST | Update | N/A |
| article html file updated | 4 May 2019 18:07 CEST | Update | N/A |
| article html file updated | 29 March 2017 08:45 CEST | Update | N/A |
| article html file updated | 22 December 2016 13:33 CET | Original file | N/A |
| article xml uploaded. | 22 December 2016 13:32 CET | Original file | https://www.mdpi.com/2079-3197/5/1/1/xml |
| article pdf uploaded. | 22 December 2016 13:32 CET | Version of Record | https://www.mdpi.com/2079-3197/5/1/1/pdf |
