| article html file updated | 6 February 2020 21:13 CET | Update | https://www.mdpi.com/1996-1073/8/8/7833 |
| article html file updated | 6 May 2019 14:40 CEST | Update | N/A |
| article html file updated | 26 March 2019 07:41 CET | Update | N/A |
| article html file updated | 3 September 2015 03:55 CEST | Update | N/A |
| article xml file uploaded | 3 September 2015 03:55 CEST | Original file | https://www.mdpi.com/1996-1073/8/8/7833/xml |
| article html file updated | 21 August 2015 15:18 CEST | Original file | N/A |
| article pdf uploaded. | 30 July 2015 13:27 CEST | Version of Record | https://www.mdpi.com/1996-1073/8/8/7833/pdf |
