| article html file updated | 6 February 2020 14:28 CET | Update | https://www.mdpi.com/1999-4907/5/12/3222 |
| article html file updated | 7 May 2019 03:57 CEST | Update | - |
| article html file updated | 25 March 2019 19:17 CET | Update | - |
| article html file updated | 21 August 2015 04:11 CEST | Update | - |
| article html file updated | 31 December 2014 07:42 CET | Original file | - |
| article xml file uploaded | 31 December 2014 07:42 CET | Original file | https://www.mdpi.com/1999-4907/5/12/3222/xml |
| article pdf uploaded. | 17 December 2014 08:51 CET | Updated version of record | https://www.mdpi.com/1999-4907/5/12/3222/pdf |
| article pdf uploaded. | 15 December 2014 11:46 CET | Version of Record | https://www.mdpi.com/1999-4907/5/12/3222/pdf-vor |
