| article html file updated | 12 February 2020 02:18 CET | Update | https://www.mdpi.com/2075-4701/9/4/399 |
| article html file updated | 17 October 2019 13:57 CEST | Update | - |
| article html file updated | 25 April 2019 18:20 CEST | Update | - |
| article html file updated | 16 April 2019 13:13 CEST | Original file | - |
| article pdf uploaded. | 16 April 2019 13:11 CEST | Updated version of record | https://www.mdpi.com/2075-4701/9/4/399/pdf |
| article xml uploaded. | 16 April 2019 13:11 CEST | Update | https://www.mdpi.com/2075-4701/9/4/399/xml |
| article xml file uploaded | 16 April 2019 13:11 CEST | Update | - |
| article pdf uploaded. | 1 April 2019 17:01 CEST | Version of Record | https://www.mdpi.com/2075-4701/9/4/399/pdf-vor |
| article xml file uploaded | 1 April 2019 17:01 CEST | Original file | - |
