| article html file updated | 14 February 2020 13:43 CET | Update | https://www.mdpi.com/2223-7747/8/12/549 |
| article html file updated | 31 December 2019 02:12 CET | Update | - |
| article html file updated | 18 December 2019 04:57 CET | Original file | - |
| article pdf uploaded. | 18 December 2019 04:55 CET | Updated version of record | https://www.mdpi.com/2223-7747/8/12/549/pdf |
| article xml uploaded. | 18 December 2019 04:55 CET | Update | https://www.mdpi.com/2223-7747/8/12/549/xml |
| article xml file uploaded | 18 December 2019 04:55 CET | Update | - |
| article pdf uploaded. | 27 November 2019 16:34 CET | Version of Record | https://www.mdpi.com/2223-7747/8/12/549/pdf-vor |
| article xml file uploaded | 27 November 2019 16:34 CET | Original file | - |
