| article html file updated | 8 February 2020 18:09 CET | Update | https://www.mdpi.com/2075-4442/5/4/38 |
| article html file updated | 2 May 2019 21:59 CEST | Update | - |
| article html file updated | 2 January 2018 14:34 CET | Update | - |
| article html file updated | 11 October 2017 18:09 CEST | Original file | - |
| article xml uploaded. | 11 October 2017 18:08 CEST | Update | https://www.mdpi.com/2075-4442/5/4/38/xml |
| article xml uploaded. | 11 October 2017 18:08 CEST | Original file | - |
| article pdf uploaded. | 11 October 2017 18:08 CEST | Version of Record | https://www.mdpi.com/2075-4442/5/4/38/pdf |
