| article html file updated | 6 February 2020 21:50 CET | Update | https://www.mdpi.com/1999-4915/7/8/2839 |
| article html file updated | 6 May 2019 13:21 CEST | Update | - |
| article html file updated | 26 March 2019 08:53 CET | Original file | - |
| article xml file uploaded | 21 September 2015 09:57 CEST | Original file | https://www.mdpi.com/1999-4915/7/8/2839/xml |
| article pdf uploaded. | 18 August 2015 11:27 CEST | Version of Record | https://www.mdpi.com/1999-4915/7/8/2839/pdf |
