| article html file updated | 12 February 2020 06:47 CET | Update | https://www.mdpi.com/2225-1154/7/4/60 |
| article html file updated | 18 October 2019 17:52 CEST | Update | - |
| article html file updated | 9 May 2019 13:32 CEST | Update | - |
| article html file updated | 26 April 2019 07:51 CEST | Original file | - |
| article pdf uploaded. | 26 April 2019 07:49 CEST | Updated version of record | https://www.mdpi.com/2225-1154/7/4/60/pdf |
| article xml uploaded. | 26 April 2019 07:49 CEST | Update | https://www.mdpi.com/2225-1154/7/4/60/xml |
| article xml file uploaded | 26 April 2019 07:49 CEST | Update | - |
| article pdf uploaded. | 20 April 2019 13:29 CEST | Version of Record | https://www.mdpi.com/2225-1154/7/4/60/pdf-vor |
| article xml file uploaded | 20 April 2019 13:29 CEST | Original file | - |
