| article html file updated | 11 February 2020 17:19 CET | Update | https://www.mdpi.com/2076-0787/8/1/31 |
| article html file updated | 26 April 2019 14:05 CEST | Update | - |
| article html file updated | 12 April 2019 09:40 CEST | Update | - |
| article html file updated | 3 April 2019 23:54 CEST | Update | - |
| article html file updated | 1 March 2019 06:45 CET | Update | - |
| article html file updated | 20 February 2019 09:23 CET | Original file | - |
| article pdf uploaded. | 20 February 2019 09:20 CET | Version of Record | https://www.mdpi.com/2076-0787/8/1/31/pdf |
| article xml uploaded. | 20 February 2019 09:20 CET | Update | https://www.mdpi.com/2076-0787/8/1/31/xml |
| article xml file uploaded | 20 February 2019 09:20 CET | Original file | - |
