| article html file updated | 6 February 2020 10:21 CET | Update | https://www.mdpi.com/1660-3397/12/7/3994 |
| article html file updated | 7 May 2019 12:20 CEST | Update | - |
| article html file updated | 21 March 2019 19:53 CET | Update | - |
| article html file updated | 20 August 2015 11:20 CEST | Update | - |
| article html file updated | 29 July 2014 12:16 CEST | Update | - |
| article xml file uploaded | 29 July 2014 12:15 CEST | Update | https://www.mdpi.com/1660-3397/12/7/3994/xml |
| article html file updated | 29 July 2014 09:47 CEST | Original file | - |
| article xml file uploaded | 29 July 2014 09:47 CEST | Original file | - |
| article pdf uploaded. | 30 June 2014 13:27 CEST | Version of Record | https://www.mdpi.com/1660-3397/12/7/3994/pdf |
