| article html file updated | 8 February 2020 04:35 CET | Update | https://www.mdpi.com/2076-0760/6/2/43 |
| article html file updated | 4 May 2019 00:23 CEST | Update | - |
| article html file updated | 28 April 2017 11:36 CEST | Update | - |
| article html file updated | 28 April 2017 11:36 CEST | Update | - |
| article html file updated | 28 April 2017 11:36 CEST | Original file | - |
| article xml uploaded. | 28 April 2017 11:11 CEST | Original file | https://www.mdpi.com/2076-0760/6/2/43/xml |
| article pdf uploaded. | 28 April 2017 11:11 CEST | Version of Record | https://www.mdpi.com/2076-0760/6/2/43/pdf |
