| article html file updated | 6 February 2020 22:00 CET | Update | https://www.mdpi.com/1999-4893/8/3/669 |
| article html file updated | 21 September 2019 02:16 CEST | Update | - |
| article html file updated | 6 May 2019 12:59 CEST | Update | - |
| article html file updated | 26 March 2019 09:13 CET | Update | - |
| article html file updated | 16 October 2015 12:14 CEST | Original file | - |
| article xml file uploaded | 16 October 2015 12:14 CEST | Original file | https://www.mdpi.com/1999-4893/8/3/669/xml |
| article pdf uploaded. | 21 August 2015 13:33 CEST | Version of Record | https://www.mdpi.com/1999-4893/8/3/669/pdf |
