| article html file updated | 7 February 2020 20:10 CET | Update | https://www.mdpi.com/2079-3197/5/1/2 |
| article html file updated | 22 September 2019 14:27 CEST | Update | N/A |
| article html file updated | 4 May 2019 18:05 CEST | Update | N/A |
| article html file updated | 29 March 2017 08:45 CEST | Update | N/A |
| article html file updated | 23 December 2016 05:24 CET | Original file | N/A |
| article xml uploaded. | 23 December 2016 05:23 CET | Original file | https://www.mdpi.com/2079-3197/5/1/2/xml |
| article pdf uploaded. | 23 December 2016 05:23 CET | Version of Record | https://www.mdpi.com/2079-3197/5/1/2/pdf |
