| article html file updated | 11 February 2020 15:21 CET | Update | https://www.mdpi.com/2073-4344/9/2/173 |
| article html file updated | 26 April 2019 18:05 CEST | Update | - |
| article html file updated | 12 April 2019 14:02 CEST | Update | - |
| article html file updated | 3 April 2019 18:52 CEST | Update | - |
| article html file updated | 1 March 2019 13:08 CET | Update | - |
| article html file updated | 28 February 2019 21:28 CET | Update | - |
| article html file updated | 20 February 2019 03:13 CET | Original file | - |
| article pdf uploaded. | 20 February 2019 03:11 CET | Updated version of record | https://www.mdpi.com/2073-4344/9/2/173/pdf |
| article xml uploaded. | 20 February 2019 03:11 CET | Update | https://www.mdpi.com/2073-4344/9/2/173/xml |
| article xml file uploaded | 20 February 2019 03:11 CET | Update | - |
| article pdf uploaded. | 12 February 2019 13:04 CET | Version of Record | https://www.mdpi.com/2073-4344/9/2/173/pdf-vor |
| article xml file uploaded | 12 February 2019 13:04 CET | Original file | - |
