| article html file updated | 6 February 2020 21:59 CET | Update | https://www.mdpi.com/1999-4907/6/8/2836 |
| article html file updated | 6 May 2019 13:02 CEST | Update | - |
| article html file updated | 26 March 2019 09:11 CET | Update | - |
| article html file updated | 1 September 2015 08:42 CEST | Original file | - |
| article xml file uploaded | 1 September 2015 08:42 CEST | Original file | https://www.mdpi.com/1999-4907/6/8/2836/xml |
| article pdf uploaded. | 24 August 2015 14:06 CEST | Updated version of record | https://www.mdpi.com/1999-4907/6/8/2836/pdf |
| article pdf uploaded. | 21 August 2015 12:02 CEST | Version of Record | https://www.mdpi.com/1999-4907/6/8/2836/pdf-vor |
