| article html file updated | 23 February 2021 07:27 CET | Update | https://www.mdpi.com/2079-3200/5/1/3 |
| article html file updated | 7 February 2020 20:21 CET | Update | - |
| article html file updated | 22 September 2019 15:30 CEST | Update | - |
| article html file updated | 4 May 2019 17:42 CEST | Update | - |
| article html file updated | 27 December 2016 12:19 CET | Original file | - |
| article xml uploaded. | 27 December 2016 12:01 CET | Original file | https://www.mdpi.com/2079-3200/5/1/3/xml |
| article pdf uploaded. | 27 December 2016 12:01 CET | Version of Record | https://www.mdpi.com/2079-3200/5/1/3/pdf |
