| article html file updated | 7 February 2020 21:52 CET | Update | https://www.mdpi.com/1999-4915/9/1/16 |
| article html file updated | 22 September 2019 23:38 CEST | Update | N/A |
| article html file updated | 4 May 2019 14:18 CEST | Update | N/A |
| article html file updated | 7 February 2017 12:25 CET | Update | N/A |
| article html file updated | 20 January 2017 12:25 CET | Original file | N/A |
| article xml uploaded. | 20 January 2017 12:24 CET | Original file | https://www.mdpi.com/1999-4915/9/1/16/xml |
| article pdf uploaded. | 20 January 2017 12:24 CET | Version of Record | https://www.mdpi.com/1999-4915/9/1/16/pdf |
