| article html file updated | 8 February 2020 14:19 CET | Update | https://www.mdpi.com/1999-4907/8/9/305 |
| article html file updated | 26 September 2019 17:16 CEST | Update | - |
| article html file updated | 3 May 2019 05:28 CEST | Update | - |
| article html file updated | 30 September 2017 10:26 CEST | Update | - |
| article html file updated | 23 August 2017 16:22 CEST | Original file | - |
| article xml uploaded. | 23 August 2017 16:20 CEST | Original file | https://www.mdpi.com/1999-4907/8/9/305/xml |
| article pdf uploaded. | 23 August 2017 16:20 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/9/305/pdf |
