| article html file updated | 7 February 2020 17:38 CET | Update | https://www.mdpi.com/2075-4450/7/4/63 |
| article html file updated | 22 September 2019 04:57 CEST | Update | - |
| article html file updated | 4 May 2019 23:14 CEST | Update | - |
| article html file updated | 29 December 2016 04:32 CET | Update | - |
| article html file updated | 8 November 2016 03:58 CET | Original file | - |
| article xml uploaded. | 8 November 2016 03:57 CET | Update | https://www.mdpi.com/2075-4450/7/4/63/xml |
| article xml uploaded. | 8 November 2016 03:57 CET | Original file | - |
| article pdf uploaded. | 8 November 2016 03:57 CET | Version of Record | https://www.mdpi.com/2075-4450/7/4/63/pdf |
