| article html file updated | 9 February 2020 05:51 CET | Update | https://www.mdpi.com/2079-6412/8/2/63 |
| article html file updated | 30 September 2019 14:44 CEST | Update | - |
| article html file updated | 1 May 2019 20:12 CEST | Update | - |
| article html file updated | 17 April 2019 19:17 CEST | Update | - |
| article html file updated | 28 March 2019 21:39 CET | Update | - |
| article html file updated | 14 March 2018 08:50 CET | Update | - |
| article html file updated | 7 February 2018 13:42 CET | Original file | - |
| article xml uploaded. | 7 February 2018 13:41 CET | Update | https://www.mdpi.com/2079-6412/8/2/63/xml |
| article xml uploaded. | 7 February 2018 13:41 CET | Original file | - |
| article pdf uploaded. | 7 February 2018 13:41 CET | Version of Record | https://www.mdpi.com/2079-6412/8/2/63/pdf |
