| article html file updated | 9 February 2020 01:16 CET | Update | https://www.mdpi.com/2075-163X/8/1/4 |
| article html file updated | 29 September 2019 12:01 CEST | Update | - |
| article html file updated | 2 May 2019 06:00 CEST | Update | - |
| article html file updated | 18 April 2019 03:59 CEST | Update | - |
| article html file updated | 28 March 2019 11:19 CET | Update | - |
| article html file updated | 1 February 2018 09:29 CET | Update | - |
| article html file updated | 26 December 2017 13:25 CET | Original file | - |
| article xml uploaded. | 26 December 2017 13:23 CET | Update | https://www.mdpi.com/2075-163X/8/1/4/xml |
| article xml uploaded. | 26 December 2017 13:23 CET | Original file | - |
| article pdf uploaded. | 26 December 2017 13:23 CET | Version of Record | https://www.mdpi.com/2075-163X/8/1/4/pdf |
