| article html file updated | 8 February 2020 15:32 CET | Update | https://www.mdpi.com/1999-4923/9/3/34 |
| article html file updated | 26 September 2019 23:58 CEST | Update | - |
| article html file updated | 3 May 2019 03:10 CEST | Update | - |
| article html file updated | 30 September 2017 14:24 CEST | Update | - |
| article html file updated | 7 September 2017 12:13 CEST | Original file | - |
| article xml uploaded. | 7 September 2017 12:12 CEST | Original file | https://www.mdpi.com/1999-4923/9/3/34/xml |
| article pdf uploaded. | 7 September 2017 12:12 CEST | Version of Record | https://www.mdpi.com/1999-4923/9/3/34/pdf |
