| article html file updated | 9 February 2020 07:24 CET | Update | https://www.mdpi.com/2073-4344/8/2/89 |
| article html file updated | 30 September 2019 23:45 CEST | Update | - |
| article html file updated | 1 May 2019 16:50 CEST | Update | - |
| article html file updated | 17 April 2019 16:13 CEST | Update | - |
| article html file updated | 29 March 2019 00:56 CET | Update | - |
| article html file updated | 14 March 2018 08:38 CET | Update | - |
| article html file updated | 23 February 2018 13:44 CET | Original file | - |
| article xml uploaded. | 23 February 2018 13:42 CET | Update | https://www.mdpi.com/2073-4344/8/2/89/xml |
| article xml uploaded. | 23 February 2018 13:42 CET | Original file | - |
| article pdf uploaded. | 23 February 2018 13:42 CET | Version of Record | https://www.mdpi.com/2073-4344/8/2/89/pdf |
