| article html file updated | 6 February 2020 00:18 CET | Update | https://www.mdpi.com/1660-3397/11/2/332 |
| article html file updated | 8 May 2019 09:05 CEST | Update | N/A |
| article html file updated | 20 March 2019 17:58 CET | Update | N/A |
| article html file updated | 17 June 2015 05:59 CEST | Update | N/A |
| article html file updated | 8 February 2013 09:44 CET | Original file | N/A |
| article pdf uploaded. | 4 February 2013 15:08 CET | Updated version of record | https://www.mdpi.com/1660-3397/11/2/332/pdf |
| article pdf uploaded. | 30 January 2013 12:26 CET | Version of Record | https://www.mdpi.com/1660-3397/11/2/332/pdf-vor |
