| article html file updated | 6 February 2020 11:28 CET | Update | https://www.mdpi.com/1996-1073/7/8/5273 |
| article html file updated | 7 May 2019 09:43 CEST | Update | N/A |
| article html file updated | 21 March 2019 23:06 CET | Update | N/A |
| article html file updated | 20 August 2015 15:28 CEST | Update | N/A |
| article html file updated | 5 September 2014 10:33 CEST | Original file | N/A |
| article xml file uploaded | 5 September 2014 10:33 CEST | Original file | https://www.mdpi.com/1996-1073/7/8/5273/xml |
| article pdf uploaded. | 14 August 2014 13:38 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/8/5273/pdf |
