| article html file updated | 8 February 2020 23:43 CET | Update | https://www.mdpi.com/2079-6412/7/12/228 |
| article html file updated | 29 September 2019 03:02 CEST | Update | - |
| article html file updated | 2 May 2019 09:22 CEST | Update | - |
| article html file updated | 18 April 2019 07:05 CEST | Update | - |
| article html file updated | 2 January 2018 10:07 CET | Update | - |
| article html file updated | 11 December 2017 16:46 CET | Original file | - |
| article xml uploaded. | 11 December 2017 16:45 CET | Update | https://www.mdpi.com/2079-6412/7/12/228/xml |
| article xml uploaded. | 11 December 2017 16:45 CET | Original file | - |
| article pdf uploaded. | 11 December 2017 16:45 CET | Version of Record | https://www.mdpi.com/2079-6412/7/12/228/pdf |
