| article html file updated | 7 February 2020 17:58 CET | Update | https://www.mdpi.com/2076-0760/5/4/73 |
| article html file updated | 4 May 2019 22:38 CEST | Update | N/A |
| article html file updated | 14 November 2016 12:24 CET | Update | N/A |
| article html file updated | 14 November 2016 12:24 CET | Update | N/A |
| article html file updated | 14 November 2016 12:24 CET | Original file | N/A |
| article xml uploaded. | 14 November 2016 12:22 CET | Original file | https://www.mdpi.com/2076-0760/5/4/73/xml |
| article pdf uploaded. | 14 November 2016 12:22 CET | Version of Record | https://www.mdpi.com/2076-0760/5/4/73/pdf |
