| article html file updated | 6 February 2020 20:49 CET | Update | https://www.mdpi.com/1996-1944/8/7/4421 |
| article html file updated | 6 May 2019 15:27 CEST | Update | - |
| article html file updated | 26 March 2019 06:56 CET | Update | - |
| article html file updated | 21 August 2015 15:00 CEST | Update | - |
| article html file updated | 10 August 2015 12:33 CEST | Original file | - |
| article xml file uploaded | 10 August 2015 12:33 CEST | Original file | https://www.mdpi.com/1996-1944/8/7/4421/xml |
| article pdf uploaded. | 22 July 2015 09:23 CEST | Updated version of record | https://www.mdpi.com/1996-1944/8/7/4421/pdf |
| article pdf uploaded. | 20 July 2015 10:30 CEST | Version of Record | https://www.mdpi.com/1996-1944/8/7/4421/pdf-vor |
