| article html file updated | 8 February 2020 23:50 CET | Update | https://www.mdpi.com/1999-4915/9/12/380 |
| article html file updated | 29 September 2019 03:46 CEST | Update | - |
| article html file updated | 2 May 2019 09:05 CEST | Update | - |
| article html file updated | 18 April 2019 06:50 CEST | Update | - |
| article html file updated | 2 January 2018 17:45 CET | Update | - |
| article html file updated | 12 December 2017 11:50 CET | Original file | - |
| article xml uploaded. | 12 December 2017 11:49 CET | Original file | https://www.mdpi.com/1999-4915/9/12/380/xml |
| article pdf uploaded. | 12 December 2017 11:49 CET | Version of Record | https://www.mdpi.com/1999-4915/9/12/380/pdf |
