| article html file updated | 6 February 2020 00:26 CET | Update | https://www.mdpi.com/1660-4601/10/2/638 |
| article html file updated | 8 May 2019 08:43 CEST | Update | - |
| article html file updated | 20 March 2019 18:20 CET | Original file | - |
| article pdf uploaded. | 18 February 2013 12:38 CET | Updated version of record | https://www.mdpi.com/1660-4601/10/2/638/pdf |
| article pdf uploaded. | 7 February 2013 15:28 CET | Updated version of record | https://www.mdpi.com/1660-4601/10/2/638/pdf-vor |
| article pdf uploaded. | 6 February 2013 11:54 CET | Version of Record | https://www.mdpi.com/1660-4601/10/2/638/pdf-vor |
