| article html file updated | 11 February 2020 13:09 CET | Update | https://www.mdpi.com/2227-9067/6/2/20 |
| article html file updated | 14 October 2019 08:06 CEST | Update | N/A |
| article html file updated | 26 April 2019 22:18 CEST | Update | N/A |
| article html file updated | 12 April 2019 18:07 CEST | Update | N/A |
| article html file updated | 3 April 2019 13:44 CEST | Update | N/A |
| article html file updated | 28 February 2019 10:56 CET | Update | N/A |
| article html file updated | 19 February 2019 10:25 CET | Original file | N/A |
| article pdf uploaded. | 19 February 2019 10:23 CET | Updated version of record | https://www.mdpi.com/2227-9067/6/2/20/pdf |
| article xml uploaded. | 19 February 2019 10:23 CET | Update | https://www.mdpi.com/2227-9067/6/2/20/xml |
| article xml file uploaded | 19 February 2019 10:23 CET | Update | N/A |
| article pdf uploaded. | 1 February 2019 12:01 CET | Version of Record | https://www.mdpi.com/2227-9067/6/2/20/pdf-vor |
| article xml file uploaded | 1 February 2019 12:01 CET | Original file | N/A |
