| article html file updated | 6 February 2020 22:28 CET | Update | https://www.mdpi.com/1996-1073/8/9/9655 |
| article html file updated | 6 May 2019 12:02 CEST | Update | - |
| article html file updated | 26 March 2019 10:05 CET | Update | - |
| article html file updated | 12 October 2015 10:31 CEST | Update | - |
| article xml file uploaded | 12 October 2015 10:31 CEST | Update | https://www.mdpi.com/1996-1073/8/9/9655/xml |
| article html file updated | 21 September 2015 13:15 CEST | Original file | - |
| article xml file uploaded | 21 September 2015 13:15 CEST | Original file | - |
| article pdf uploaded. | 4 September 2015 10:01 CEST | Version of Record | https://www.mdpi.com/1996-1073/8/9/9655/pdf |
