| article html file updated | 8 February 2020 20:02 CET | Update | https://www.mdpi.com/2075-4450/8/4/120 |
| article html file updated | 28 September 2019 03:57 CEST | Update | - |
| article html file updated | 2 May 2019 17:37 CEST | Update | - |
| article html file updated | 2 January 2018 12:35 CET | Update | - |
| article html file updated | 1 November 2017 12:48 CET | Original file | - |
| article xml uploaded. | 1 November 2017 12:46 CET | Original file | https://www.mdpi.com/2075-4450/8/4/120/xml |
| article pdf uploaded. | 1 November 2017 12:46 CET | Version of Record | https://www.mdpi.com/2075-4450/8/4/120/pdf |
