| article html file updated | 14 February 2020 05:29 CET | Update | https://www.mdpi.com/1996-1073/12/21/4159 |
| article html file updated | 15 November 2019 09:02 CET | Update | N/A |
| article html file updated | 4 November 2019 11:29 CET | Update | N/A |
| article xml uploaded. | 4 November 2019 11:28 CET | Update | https://www.mdpi.com/1996-1073/12/21/4159/xml |
| article xml uploaded. | 4 November 2019 11:28 CET | Update | N/A |
| article xml uploaded. | 4 November 2019 11:28 CET | Update | N/A |
| article pdf uploaded. | 4 November 2019 11:28 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/21/4159/pdf |
| article html file updated | 31 October 2019 09:49 CET | Original file | N/A |
| article pdf uploaded. | 31 October 2019 09:48 CET | Version of Record | https://www.mdpi.com/1996-1073/12/21/4159/pdf-vor |
| article xml uploaded. | 31 October 2019 09:48 CET | Update | N/A |
| article xml file uploaded | 31 October 2019 09:48 CET | Original file | N/A |
