| article html file updated | 6 February 2020 06:07 CET | Update | https://www.mdpi.com/1660-3397/11/12/4973 |
| article html file updated | 7 May 2019 21:01 CEST | Update | N/A |
| article html file updated | 21 March 2019 09:11 CET | Update | N/A |
| article html file updated | 19 August 2015 13:16 CEST | Update | N/A |
| article html file updated | 7 January 2014 12:47 CET | Original file | N/A |
| article xml file uploaded | 7 January 2014 12:47 CET | Original file | https://www.mdpi.com/1660-3397/11/12/4973/xml |
| article pdf uploaded. | 11 December 2013 14:22 CET | Version of Record | https://www.mdpi.com/1660-3397/11/12/4973/pdf |
