| article html file updated | 8 February 2020 23:31 CET | Update | https://www.mdpi.com/2075-4701/7/12/554 |
| article html file updated | 29 September 2019 01:57 CEST | Update | - |
| article html file updated | 2 May 2019 09:49 CEST | Update | - |
| article html file updated | 18 April 2019 07:29 CEST | Update | - |
| article html file updated | 2 January 2018 18:11 CET | Update | - |
| article html file updated | 8 December 2017 14:19 CET | Original file | - |
| article xml uploaded. | 8 December 2017 14:18 CET | Original file | https://www.mdpi.com/2075-4701/7/12/554/xml |
| article pdf uploaded. | 8 December 2017 14:18 CET | Version of Record | https://www.mdpi.com/2075-4701/7/12/554/pdf |
