| article html file updated | 10 February 2020 21:10 CET | Update | https://www.mdpi.com/2225-1146/6/4/44 |
| article html file updated | 10 October 2019 10:02 CEST | Update | - |
| article html file updated | 28 April 2019 08:40 CEST | Update | - |
| article html file updated | 14 April 2019 04:18 CEST | Update | - |
| article html file updated | 1 April 2019 20:35 CEST | Update | - |
| article html file updated | 26 December 2018 23:59 CET | Update | - |
| article html file updated | 28 November 2018 07:05 CET | Update | - |
| article pdf uploaded. | 28 November 2018 05:28 CET | Updated version of record | https://www.mdpi.com/2225-1146/6/4/44/pdf |
| article xml uploaded. | 28 November 2018 05:28 CET | Update | https://www.mdpi.com/2225-1146/6/4/44/xml |
| article xml file uploaded | 28 November 2018 05:28 CET | Update | - |
| article html file updated | 13 November 2018 14:26 CET | Original file | - |
| article pdf uploaded. | 13 November 2018 14:25 CET | Version of Record | https://www.mdpi.com/2225-1146/6/4/44/pdf-vor |
| article xml uploaded. | 13 November 2018 14:25 CET | Update | - |
| article xml file uploaded | 13 November 2018 14:25 CET | Original file | - |