| article html file updated | 23 February 2021 07:31 CET | Update | https://www.mdpi.com/2079-3200/5/2/26 |
| article html file updated | 8 February 2020 08:32 CET | Update | - |
| article html file updated | 25 September 2019 09:42 CEST | Update | - |
| article html file updated | 3 May 2019 17:00 CEST | Update | - |
| article html file updated | 19 June 2017 03:54 CEST | Original file | - |
| article xml uploaded. | 19 June 2017 03:53 CEST | Update | https://www.mdpi.com/2079-3200/5/2/26/xml |
| article pdf uploaded. | 19 June 2017 03:17 CEST | Updated version of record | https://www.mdpi.com/2079-3200/5/2/26/pdf |
| article pdf uploaded. | 16 June 2017 14:41 CEST | Version of Record | https://www.mdpi.com/2079-3200/5/2/26/pdf-vor |
