| article html file updated | 8 February 2020 03:32 CET | Update | https://www.mdpi.com/1999-4923/9/2/14 |
| article html file updated | 24 September 2019 07:23 CEST | Update | - |
| article html file updated | 4 May 2019 02:19 CEST | Update | - |
| article html file updated | 29 June 2017 12:44 CEST | Update | - |
| article html file updated | 13 April 2017 14:58 CEST | Original file | - |
| article xml uploaded. | 13 April 2017 14:56 CEST | Original file | https://www.mdpi.com/1999-4923/9/2/14/xml |
| article pdf uploaded. | 13 April 2017 14:56 CEST | Version of Record | https://www.mdpi.com/1999-4923/9/2/14/pdf |
