| article html file updated | 6 February 2020 11:43 CET | Update | https://www.mdpi.com/1999-4907/5/8/2037 |
| article html file updated | 7 May 2019 09:15 CEST | Update | - |
| article html file updated | 21 March 2019 23:39 CET | Update | - |
| article html file updated | 20 August 2015 16:18 CEST | Update | - |
| article html file updated | 26 August 2014 03:46 CEST | Original file | - |
| article xml file uploaded | 26 August 2014 03:46 CEST | Original file | https://www.mdpi.com/1999-4907/5/8/2037/xml |
| article pdf uploaded. | 25 August 2014 07:58 CEST | Updated version of record | https://www.mdpi.com/1999-4907/5/8/2037/pdf |
| article pdf uploaded. | 22 August 2014 12:19 CEST | Version of Record | https://www.mdpi.com/1999-4907/5/8/2037/pdf-vor |
