| article html file updated | 12 February 2020 06:00 CET | Update | https://www.mdpi.com/2075-4701/9/4/452 |
| article html file updated | 18 October 2019 12:47 CEST | Update | - |
| article html file updated | 25 April 2019 10:12 CEST | Update | - |
| article html file updated | 24 April 2019 11:48 CEST | Original file | - |
| article pdf uploaded. | 24 April 2019 11:46 CEST | Updated version of record | https://www.mdpi.com/2075-4701/9/4/452/pdf |
| article xml uploaded. | 24 April 2019 11:46 CEST | Update | https://www.mdpi.com/2075-4701/9/4/452/xml |
| article xml file uploaded | 24 April 2019 11:46 CEST | Update | - |
| article pdf uploaded. | 17 April 2019 15:49 CEST | Version of Record | https://www.mdpi.com/2075-4701/9/4/452/pdf-vor |
| article xml file uploaded | 17 April 2019 15:49 CEST | Original file | - |
