| article html file updated | 9 February 2020 04:25 CET | Update | https://www.mdpi.com/2073-4344/8/2/47 |
| article html file updated | 30 September 2019 05:52 CEST | Update | - |
| article html file updated | 1 May 2019 23:25 CEST | Update | - |
| article html file updated | 17 April 2019 22:01 CEST | Update | - |
| article html file updated | 28 March 2019 18:29 CET | Update | - |
| article html file updated | 14 March 2018 08:40 CET | Update | - |
| article html file updated | 26 January 2018 08:13 CET | Original file | - |
| article xml uploaded. | 26 January 2018 08:12 CET | Update | https://www.mdpi.com/2073-4344/8/2/47/xml |
| article xml uploaded. | 26 January 2018 08:12 CET | Original file | - |
| article pdf uploaded. | 26 January 2018 08:12 CET | Version of Record | https://www.mdpi.com/2073-4344/8/2/47/pdf |
