| article html file updated | 6 February 2020 21:43 CET | Update | https://www.mdpi.com/1999-4915/7/8/2837 |
| article html file updated | 6 May 2019 13:38 CEST | Update | N/A |
| article html file updated | 26 March 2019 08:38 CET | Original file | N/A |
| article xml file uploaded | 21 September 2015 09:57 CEST | Original file | https://www.mdpi.com/1999-4915/7/8/2837/xml |
| article pdf uploaded. | 17 August 2015 08:52 CEST | Updated version of record | https://www.mdpi.com/1999-4915/7/8/2837/pdf |
| article pdf uploaded. | 13 August 2015 11:52 CEST | Version of Record | https://www.mdpi.com/1999-4915/7/8/2837/pdf-vor |
