| article html file updated | 6 February 2020 07:50 CET | Update | https://www.mdpi.com/1660-3397/12/3/1406 |
| article html file updated | 7 May 2019 17:28 CEST | Update | - |
| article html file updated | 21 March 2019 13:43 CET | Update | - |
| article html file updated | 19 August 2015 23:22 CEST | Update | - |
| article html file updated | 28 April 2014 10:52 CEST | Original file | - |
| article xml file uploaded | 28 April 2014 10:52 CEST | Original file | https://www.mdpi.com/1660-3397/12/3/1406/xml |
| article pdf uploaded. | 11 March 2014 13:27 CET | Version of Record | https://www.mdpi.com/1660-3397/12/3/1406/pdf |
