| article html file updated | 6 February 2020 16:57 CET | Update | https://www.mdpi.com/1660-3397/13/4/1666 |
| article html file updated | 6 May 2019 23:09 CEST | Update | - |
| article html file updated | 25 March 2019 23:32 CET | Update | - |
| article html file updated | 21 August 2015 09:17 CEST | Update | - |
| article html file updated | 29 April 2015 11:28 CEST | Original file | - |
| article xml file uploaded | 29 April 2015 11:28 CEST | Original file | https://www.mdpi.com/1660-3397/13/4/1666/xml |
| article pdf uploaded. | 25 March 2015 10:36 CET | Version of Record | https://www.mdpi.com/1660-3397/13/4/1666/pdf |
