| article html file updated | 7 February 2020 14:10 CET | Update | https://www.mdpi.com/1999-4907/7/9/192 |
| article html file updated | 5 May 2019 05:35 CEST | Update | - |
| article html file updated | 27 March 2019 15:26 CET | Update | - |
| article html file updated | 28 September 2016 07:18 CEST | Update | - |
| article html file updated | 31 August 2016 09:29 CEST | Original file | - |
| article xml uploaded. | 31 August 2016 09:28 CEST | Original file | https://www.mdpi.com/1999-4907/7/9/192/xml |
| article pdf uploaded. | 31 August 2016 09:28 CEST | Version of Record | https://www.mdpi.com/1999-4907/7/9/192/pdf |
