| article html file updated | 10 February 2020 22:49 CET | Update | https://www.mdpi.com/2075-1702/6/4/61 |
| article html file updated | 10 October 2019 20:42 CEST | Update | - |
| article html file updated | 28 April 2019 04:39 CEST | Update | - |
| article html file updated | 14 April 2019 00:47 CEST | Update | - |
| article html file updated | 2 April 2019 01:01 CEST | Update | - |
| article html file updated | 26 December 2018 03:47 CET | Update | - |
| article html file updated | 22 November 2018 14:39 CET | Original file | - |
| article pdf uploaded. | 22 November 2018 14:37 CET | Version of Record | https://www.mdpi.com/2075-1702/6/4/61/pdf |
| article xml uploaded. | 22 November 2018 14:37 CET | Update | https://www.mdpi.com/2075-1702/6/4/61/xml |
| article xml file uploaded | 22 November 2018 14:37 CET | Original file | - |
