| article html file updated | 13 February 2020 19:12 CET | Update | https://www.mdpi.com/2305-6290/3/4/21 |
| article html file updated | 24 September 2019 06:36 CEST | Original file | - |
| article pdf uploaded. | 24 September 2019 06:34 CEST | Updated version of record | https://www.mdpi.com/2305-6290/3/4/21/pdf |
| article xml uploaded. | 24 September 2019 06:34 CEST | Update | https://www.mdpi.com/2305-6290/3/4/21/xml |
| article xml file uploaded | 24 September 2019 06:34 CEST | Update | - |
| article pdf uploaded. | 20 September 2019 15:31 CEST | Version of Record | https://www.mdpi.com/2305-6290/3/4/21/pdf-vor |
| article xml file uploaded | 20 September 2019 15:31 CEST | Original file | - |
