| article html file updated | 12 February 2020 23:50 CET | Update | https://www.mdpi.com/1996-1073/12/13/2556 |
| article html file updated | 4 July 2019 03:49 CEST | Update | N/A |
| article pdf uploaded. | 4 July 2019 03:47 CEST | Updated version of record | https://www.mdpi.com/1996-1073/12/13/2556/pdf |
| article xml uploaded. | 4 July 2019 03:47 CEST | Update | https://www.mdpi.com/1996-1073/12/13/2556/xml |
| article xml file uploaded | 4 July 2019 03:47 CEST | Update | N/A |
| article html file updated | 3 July 2019 07:25 CEST | Original file | N/A |
| article pdf uploaded. | 3 July 2019 07:24 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/13/2556/pdf-vor |
| article xml file uploaded | 3 July 2019 07:24 CEST | Original file | N/A |
