| article html file updated | 8 February 2020 10:27 CET | Update | https://www.mdpi.com/2076-0760/6/3/71 |
| article html file updated | 3 May 2019 13:24 CEST | Update | - |
| article html file updated | 7 July 2017 15:15 CEST | Original file | - |
| article xml uploaded. | 7 July 2017 15:14 CEST | Original file | https://www.mdpi.com/2076-0760/6/3/71/xml |
| article pdf uploaded. | 7 July 2017 15:14 CEST | Version of Record | https://www.mdpi.com/2076-0760/6/3/71/pdf |
