| article html file updated | 23 February 2021 07:36 CET | Update | https://www.mdpi.com/2079-3200/6/2/22 |
| article html file updated | 9 February 2020 13:06 CET | Update | - |
| article html file updated | 2 October 2019 10:27 CEST | Update | - |
| article html file updated | 1 May 2019 04:54 CEST | Update | - |
| article html file updated | 17 April 2019 05:09 CEST | Update | - |
| article html file updated | 29 March 2019 14:02 CET | Update | - |
| article html file updated | 12 April 2018 15:50 CEST | Original file | - |
| article xml uploaded. | 12 April 2018 15:49 CEST | Original file | https://www.mdpi.com/2079-3200/6/2/22/xml |
| article pdf uploaded. | 12 April 2018 15:49 CEST | Updated version of record | https://www.mdpi.com/2079-3200/6/2/22/pdf |
| article pdf uploaded. | 9 April 2018 14:34 CEST | Version of Record | https://www.mdpi.com/2079-3200/6/2/22/pdf-vor |
