| article html file updated | 7 February 2020 18:08 CET | Update | https://www.mdpi.com/2079-3197/4/4/44 |
| article html file updated | 4 May 2019 22:18 CEST | Update | N/A |
| article html file updated | 28 December 2016 07:48 CET | Update | N/A |
| article html file updated | 17 November 2016 09:01 CET | Original file | N/A |
| article xml uploaded. | 17 November 2016 09:00 CET | Update | https://www.mdpi.com/2079-3197/4/4/44/xml |
| article xml uploaded. | 17 November 2016 09:00 CET | Original file | N/A |
| article pdf uploaded. | 17 November 2016 09:00 CET | Version of Record | https://www.mdpi.com/2079-3197/4/4/44/pdf |
