| article html file updated | 13 February 2020 18:55 CET | Update | https://www.mdpi.com/2305-6304/7/4/49 |
| article html file updated | 30 December 2019 14:42 CET | Update | - |
| article html file updated | 23 September 2019 10:20 CEST | Original file | - |
| article pdf uploaded. | 23 September 2019 10:18 CEST | Updated version of record | https://www.mdpi.com/2305-6304/7/4/49/pdf |
| article xml uploaded. | 23 September 2019 10:18 CEST | Update | https://www.mdpi.com/2305-6304/7/4/49/xml |
| article xml file uploaded | 23 September 2019 10:18 CEST | Update | - |
| article pdf uploaded. | 20 September 2019 06:06 CEST | Version of Record | https://www.mdpi.com/2305-6304/7/4/49/pdf-vor |
| article xml file uploaded | 20 September 2019 06:06 CEST | Original file | - |
