| article html file updated | 8 February 2020 00:11 CET | Update | https://www.mdpi.com/1999-4923/9/1/11 |
| article html file updated | 23 September 2019 12:27 CEST | Update | - |
| article html file updated | 4 May 2019 09:35 CEST | Update | - |
| article html file updated | 31 March 2017 05:36 CEST | Update | - |
| article html file updated | 24 February 2017 11:21 CET | Original file | - |
| article xml uploaded. | 24 February 2017 11:19 CET | Original file | https://www.mdpi.com/1999-4923/9/1/11/xml |
| article pdf uploaded. | 24 February 2017 11:19 CET | Version of Record | https://www.mdpi.com/1999-4923/9/1/11/pdf |
