| article html file updated | 7 February 2020 14:12 CET | Update | https://www.mdpi.com/2073-4425/7/9/56 |
| article html file updated | 5 May 2019 05:32 CEST | Update | - |
| article html file updated | 27 March 2019 15:30 CET | Update | - |
| article html file updated | 26 September 2016 10:55 CEST | Update | - |
| article html file updated | 14 September 2016 10:42 CEST | Update | - |
| article xml uploaded. | 14 September 2016 10:40 CEST | Update | https://www.mdpi.com/2073-4425/7/9/56/xml |
| article xml uploaded. | 14 September 2016 10:40 CEST | Update | - |
| article pdf uploaded. | 14 September 2016 10:40 CEST | Updated version of record | https://www.mdpi.com/2073-4425/7/9/56/pdf |
| article html file updated | 31 August 2016 11:29 CEST | Original file | - |
| article xml uploaded. | 31 August 2016 11:28 CEST | Original file | - |
| article pdf uploaded. | 31 August 2016 11:28 CEST | Version of Record | https://www.mdpi.com/2073-4425/7/9/56/pdf-vor |
