| article html file updated | 11 February 2020 15:43 CET | Update | https://www.mdpi.com/2227-9067/6/2/28 |
| article html file updated | 14 October 2019 22:09 CEST | Update | - |
| article html file updated | 26 April 2019 17:25 CEST | Update | - |
| article html file updated | 12 April 2019 13:21 CEST | Update | - |
| article html file updated | 3 April 2019 19:42 CEST | Update | - |
| article html file updated | 28 February 2019 22:57 CET | Update | - |
| article html file updated | 25 February 2019 04:18 CET | Original file | - |
| article pdf uploaded. | 25 February 2019 04:16 CET | Updated version of record | https://www.mdpi.com/2227-9067/6/2/28/pdf |
| article xml uploaded. | 25 February 2019 04:16 CET | Update | https://www.mdpi.com/2227-9067/6/2/28/xml |
| article xml file uploaded | 25 February 2019 04:16 CET | Update | - |
| article pdf uploaded. | 19 February 2019 07:15 CET | Updated version of record | https://www.mdpi.com/2227-9067/6/2/28/pdf-vor |
| article xml file uploaded | 19 February 2019 07:15 CET | Update | - |
| article pdf uploaded. | 13 February 2019 13:08 CET | Version of Record | https://www.mdpi.com/2227-9067/6/2/28/pdf-vor |
| article xml file uploaded | 13 February 2019 13:08 CET | Original file | - |
