| article html file updated | 7 February 2020 18:58 CET | Update | https://www.mdpi.com/2075-4450/7/4/71 |
| article html file updated | 22 September 2019 08:19 CEST | Update | - |
| article html file updated | 4 May 2019 20:36 CEST | Update | - |
| article html file updated | 29 December 2016 04:34 CET | Update | - |
| article html file updated | 2 December 2016 08:38 CET | Original file | - |
| article xml uploaded. | 2 December 2016 08:37 CET | Original file | https://www.mdpi.com/2075-4450/7/4/71/xml |
| article pdf uploaded. | 2 December 2016 08:37 CET | Version of Record | https://www.mdpi.com/2075-4450/7/4/71/pdf |
