| article html file updated | 8 February 2020 23:49 CET | Update | https://www.mdpi.com/2075-4701/7/12/557 |
| article html file updated | 29 September 2019 03:38 CEST | Update | - |
| article html file updated | 2 May 2019 09:08 CEST | Update | - |
| article html file updated | 18 April 2019 06:52 CEST | Update | - |
| article html file updated | 2 January 2018 18:13 CET | Update | - |
| article html file updated | 12 December 2017 09:29 CET | Original file | - |
| article xml uploaded. | 12 December 2017 09:27 CET | Original file | https://www.mdpi.com/2075-4701/7/12/557/xml |
| article pdf uploaded. | 12 December 2017 09:27 CET | Version of Record | https://www.mdpi.com/2075-4701/7/12/557/pdf |
