| article html file updated | 14 February 2020 15:53 CET | Update | https://www.mdpi.com/2076-0752/8/4/159 |
| article html file updated | 30 December 2019 09:41 CET | Update | - |
| article html file updated | 9 December 2019 07:37 CET | Original file | - |
| article pdf uploaded. | 9 December 2019 07:35 CET | Updated version of record | https://www.mdpi.com/2076-0752/8/4/159/pdf |
| article xml uploaded. | 9 December 2019 07:35 CET | Update | https://www.mdpi.com/2076-0752/8/4/159/xml |
| article xml file uploaded | 9 December 2019 07:35 CET | Update | - |
| article pdf uploaded. | 4 December 2019 15:39 CET | Version of Record | https://www.mdpi.com/2076-0752/8/4/159/pdf-vor |
| article xml file uploaded | 4 December 2019 15:39 CET | Original file | - |
