| article html file updated | 9 February 2020 05:12 CET | Update | https://www.mdpi.com/2073-4352/8/2/77 |
| article html file updated | 30 September 2019 10:36 CEST | Update | - |
| article html file updated | 1 May 2019 21:42 CEST | Update | - |
| article html file updated | 17 April 2019 20:32 CEST | Update | - |
| article html file updated | 28 March 2019 20:13 CET | Update | - |
| article html file updated | 14 March 2018 09:04 CET | Update | - |
| article html file updated | 1 February 2018 16:13 CET | Original file | - |
| article xml uploaded. | 1 February 2018 15:36 CET | Update | https://www.mdpi.com/2073-4352/8/2/77/xml |
| article xml uploaded. | 1 February 2018 15:36 CET | Update | - |
| article xml uploaded. | 1 February 2018 15:36 CET | Original file | - |
| article pdf uploaded. | 1 February 2018 15:36 CET | Version of Record | https://www.mdpi.com/2073-4352/8/2/77/pdf |
