| article html file updated | 9 February 2020 12:45 CET | Update | https://www.mdpi.com/2079-6382/7/2/31 |
| article html file updated | 2 October 2019 08:09 CEST | Update | - |
| article html file updated | 1 May 2019 05:39 CEST | Update | - |
| article html file updated | 17 April 2019 05:48 CEST | Update | - |
| article html file updated | 29 March 2019 13:13 CET | Update | - |
| article html file updated | 5 April 2018 17:58 CEST | Original file | - |
| article xml uploaded. | 5 April 2018 17:56 CEST | Original file | https://www.mdpi.com/2079-6382/7/2/31/xml |
| article pdf uploaded. | 5 April 2018 17:56 CEST | Version of Record | https://www.mdpi.com/2079-6382/7/2/31/pdf |
