| article html file updated | 6 February 2020 05:33 CET | Update | https://www.mdpi.com/2225-1146/1/3/207 |
| article html file updated | 20 September 2019 03:10 CEST | Update | - |
| article html file updated | 7 May 2019 22:07 CEST | Update | - |
| article html file updated | 21 March 2019 07:38 CET | Update | - |
| article html file updated | 21 July 2017 03:53 CEST | Update | - |
| article html file updated | 21 July 2017 03:52 CEST | Update | - |
| article html file updated | 21 July 2017 03:52 CEST | Original file | - |
| article xml uploaded. | 21 July 2017 03:50 CEST | Original file | https://www.mdpi.com/2225-1146/1/3/207/xml |
| article pdf uploaded. | 15 November 2013 09:45 CET | Updated version of record | https://www.mdpi.com/2225-1146/1/3/207/pdf |
| article pdf uploaded. | 14 November 2013 14:54 CET | Version of Record | https://www.mdpi.com/2225-1146/1/3/207/pdf-vor |
