| article html file updated | 6 February 2020 09:12 CET | Update | https://www.mdpi.com/2073-4360/6/5/1381 |
| article html file updated | 7 May 2019 14:38 CEST | Update | - |
| article html file updated | 21 March 2019 16:56 CET | Update | - |
| article html file updated | 20 August 2015 06:37 CEST | Original file | - |
| article pdf uploaded. | 21 May 2014 09:49 CEST | Updated version of record | https://www.mdpi.com/2073-4360/6/5/1381/pdf |
| article pdf uploaded. | 13 May 2014 16:45 CEST | Updated version of record | https://www.mdpi.com/2073-4360/6/5/1381/pdf-vor |
| article pdf uploaded. | 13 May 2014 11:17 CEST | Version of Record | https://www.mdpi.com/2073-4360/6/5/1381/pdf-vor |
