| article html file updated | 7 February 2020 19:20 CET | Update | https://www.mdpi.com/2075-4450/7/4/74 |
| article html file updated | 22 September 2019 09:57 CEST | Update | - |
| article html file updated | 4 May 2019 19:50 CEST | Update | - |
| article html file updated | 29 December 2016 04:34 CET | Update | - |
| article html file updated | 9 December 2016 09:21 CET | Original file | - |
| article xml uploaded. | 9 December 2016 09:20 CET | Original file | https://www.mdpi.com/2075-4450/7/4/74/xml |
| article pdf uploaded. | 9 December 2016 09:20 CET | Version of Record | https://www.mdpi.com/2075-4450/7/4/74/pdf |
