| article html file updated | 11 February 2020 06:11 CET | Update | https://www.mdpi.com/2076-0787/8/1/2 |
| article html file updated | 27 April 2019 12:33 CEST | Update | - |
| article html file updated | 13 April 2019 08:31 CEST | Update | - |
| article html file updated | 2 April 2019 20:59 CEST | Update | - |
| article html file updated | 26 February 2019 11:18 CET | Update | - |
| article html file updated | 2 January 2019 02:26 CET | Original file | - |
| article pdf uploaded. | 1 January 2019 11:20 CET | Version of Record | https://www.mdpi.com/2076-0787/8/1/2/pdf |
| article xml uploaded. | 1 January 2019 11:20 CET | Update | https://www.mdpi.com/2076-0787/8/1/2/xml |
| article xml file uploaded | 1 January 2019 11:20 CET | Original file | - |
