| article html file updated | 8 February 2020 22:55 CET | Update | https://www.mdpi.com/2079-6412/7/12/219 |
| article html file updated | 28 September 2019 22:34 CEST | Update | - |
| article html file updated | 2 May 2019 11:06 CEST | Update | - |
| article html file updated | 18 April 2019 08:44 CEST | Update | - |
| article html file updated | 2 January 2018 10:14 CET | Update | - |
| article html file updated | 2 December 2017 10:19 CET | Original file | - |
| article xml uploaded. | 2 December 2017 10:18 CET | Original file | https://www.mdpi.com/2079-6412/7/12/219/xml |
| article pdf uploaded. | 2 December 2017 10:18 CET | Version of Record | https://www.mdpi.com/2079-6412/7/12/219/pdf |
