| article html file updated | 9 February 2020 08:31 CET | Update | https://www.mdpi.com/1999-4907/9/3/117 |
| article html file updated | 1 October 2019 06:09 CEST | Update | - |
| article html file updated | 1 May 2019 14:29 CEST | Update | - |
| article html file updated | 17 April 2019 14:05 CEST | Update | - |
| article html file updated | 29 March 2019 03:41 CET | Update | - |
| article html file updated | 26 March 2018 13:34 CEST | Update | - |
| article html file updated | 3 March 2018 09:46 CET | Original file | - |
| article xml uploaded. | 3 March 2018 09:45 CET | Original file | https://www.mdpi.com/1999-4907/9/3/117/xml |
| article pdf uploaded. | 3 March 2018 09:45 CET | Version of Record | https://www.mdpi.com/1999-4907/9/3/117/pdf |
