| article html file updated | 6 February 2020 22:38 CET | Update | https://www.mdpi.com/1999-4893/8/3/754 |
| article html file updated | 6 May 2019 11:41 CEST | Update | - |
| article html file updated | 26 March 2019 10:25 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/1999-4893/8/3/754/xml |
| article pdf uploaded. | 15 September 2015 07:57 CEST | Updated version of record | https://www.mdpi.com/1999-4893/8/3/754/pdf |
| article pdf uploaded. | 10 September 2015 13:17 CEST | Version of Record | https://www.mdpi.com/1999-4893/8/3/754/pdf-vor |
