| article html file updated | 8 February 2020 22:34 CET | Update | https://www.mdpi.com/2075-1729/7/4/49 |
| article html file updated | 2 May 2019 11:56 CEST | Update | - |
| article html file updated | 18 April 2019 09:32 CEST | Update | - |
| article html file updated | 3 January 2018 09:27 CET | Update | - |
| article html file updated | 29 November 2017 16:04 CET | Original file | - |
| article xml uploaded. | 29 November 2017 16:03 CET | Original file | https://www.mdpi.com/2075-1729/7/4/49/xml |
| article pdf uploaded. | 29 November 2017 16:03 CET | Updated version of record | https://www.mdpi.com/2075-1729/7/4/49/pdf |
| article pdf uploaded. | 29 November 2017 12:37 CET | Version of Record | - |
