| article html file updated | 11 February 2020 21:51 CET | Update | https://www.mdpi.com/1996-1073/12/6/970 |
| article html file updated | 16 October 2019 12:30 CEST | Update | - |
| article html file updated | 26 April 2019 03:59 CEST | Update | - |
| article html file updated | 11 April 2019 23:04 CEST | Update | - |
| article html file updated | 4 April 2019 12:21 CEST | Update | - |
| article html file updated | 13 March 2019 08:52 CET | Original file | - |
| article pdf uploaded. | 13 March 2019 08:51 CET | Version of Record | https://www.mdpi.com/1996-1073/12/6/970/pdf |
| article xml uploaded. | 13 March 2019 08:51 CET | Update | https://www.mdpi.com/1996-1073/12/6/970/xml |
| article xml file uploaded | 13 March 2019 08:51 CET | Original file | - |
