| article html file updated | 7 February 2020 18:41 CET | Update | https://www.mdpi.com/2073-4352/6/12/157 |
| article html file updated | 22 September 2019 07:16 CEST | Update | - |
| article html file updated | 4 May 2019 21:11 CEST | Update | - |
| article html file updated | 27 December 2016 11:22 CET | Update | - |
| article html file updated | 28 November 2016 03:32 CET | Original file | - |
| article xml uploaded. | 28 November 2016 03:30 CET | Original file | https://www.mdpi.com/2073-4352/6/12/157/xml |
| article pdf uploaded. | 28 November 2016 03:30 CET | Version of Record | https://www.mdpi.com/2073-4352/6/12/157/pdf |
