| article html file updated | 11 February 2020 20:43 CET | Update | https://www.mdpi.com/2076-0787/8/1/50 |
| article html file updated | 26 April 2019 06:26 CEST | Update | - |
| article html file updated | 12 April 2019 01:40 CEST | Update | - |
| article html file updated | 4 April 2019 09:11 CEST | Update | - |
| article html file updated | 7 March 2019 10:49 CET | Original file | - |
| article pdf uploaded. | 7 March 2019 10:48 CET | Version of Record | https://www.mdpi.com/2076-0787/8/1/50/pdf |
| article xml uploaded. | 7 March 2019 10:48 CET | Update | https://www.mdpi.com/2076-0787/8/1/50/xml |
| article xml file uploaded | 7 March 2019 10:48 CET | Original file | - |
