| article html file updated | 7 February 2020 19:34 CET | Update | https://www.mdpi.com/2075-4450/7/4/75 |
| article html file updated | 22 September 2019 11:16 CEST | Update | - |
| article html file updated | 4 May 2019 19:20 CEST | Update | - |
| article html file updated | 29 December 2016 04:34 CET | Update | - |
| article html file updated | 14 December 2016 09:53 CET | Original file | - |
| article xml uploaded. | 14 December 2016 09:52 CET | Update | https://www.mdpi.com/2075-4450/7/4/75/xml |
| article xml uploaded. | 14 December 2016 09:52 CET | Original file | - |
| article pdf uploaded. | 14 December 2016 09:52 CET | Version of Record | https://www.mdpi.com/2075-4450/7/4/75/pdf |
