| article html file updated | 6 February 2020 17:33 CET | Update | https://www.mdpi.com/1660-3397/13/4/2141 |
| article html file updated | 6 May 2019 22:09 CEST | Update | - |
| article html file updated | 26 March 2019 00:28 CET | Update | - |
| article html file updated | 21 August 2015 10:19 CEST | Update | - |
| article html file updated | 29 April 2015 11:29 CEST | Original file | - |
| article xml file uploaded | 29 April 2015 11:29 CEST | Original file | https://www.mdpi.com/1660-3397/13/4/2141/xml |
| article pdf uploaded. | 13 April 2015 13:38 CEST | Version of Record | https://www.mdpi.com/1660-3397/13/4/2141/pdf |
