| article html file updated | 11 February 2020 07:04 CET | Update | https://www.mdpi.com/2076-0787/8/1/4 |
| article html file updated | 27 April 2019 10:39 CEST | Update | - |
| article html file updated | 13 April 2019 06:36 CEST | Update | - |
| article html file updated | 2 April 2019 23:00 CEST | Update | - |
| article html file updated | 7 January 2019 09:32 CET | Original file | - |
| article pdf uploaded. | 7 January 2019 09:29 CET | Version of Record | https://www.mdpi.com/2076-0787/8/1/4/pdf |
| article xml uploaded. | 7 January 2019 09:29 CET | Update | https://www.mdpi.com/2076-0787/8/1/4/xml |
| article xml file uploaded | 7 January 2019 09:29 CET | Original file | - |
