| article html file updated | 11 February 2020 16:13 CET | Update | https://www.mdpi.com/1996-1073/12/4/612 |
| article html file updated | 15 October 2019 00:56 CEST | Update | - |
| article html file updated | 26 April 2019 16:25 CEST | Update | - |
| article html file updated | 12 April 2019 12:13 CEST | Update | - |
| article html file updated | 3 April 2019 20:58 CEST | Update | - |
| article html file updated | 1 March 2019 12:40 CET | Update | - |
| article html file updated | 1 March 2019 01:14 CET | Update | - |
| article html file updated | 16 February 2019 02:46 CET | Original file | - |
| article pdf uploaded. | 15 February 2019 09:31 CET | Version of Record | https://www.mdpi.com/1996-1073/12/4/612/pdf |
| article xml uploaded. | 15 February 2019 09:31 CET | Update | https://www.mdpi.com/1996-1073/12/4/612/xml |
| article xml file uploaded | 15 February 2019 09:31 CET | Original file | - |
