| article html file updated | 10 February 2020 19:02 CET | Update | https://www.mdpi.com/2075-1702/6/4/55 |
| article html file updated | 9 October 2019 20:48 CEST | Update | N/A |
| article html file updated | 28 April 2019 13:35 CEST | Update | N/A |
| article html file updated | 14 April 2019 08:48 CEST | Update | N/A |
| article html file updated | 1 April 2019 15:03 CEST | Update | N/A |
| article html file updated | 26 December 2018 03:45 CET | Update | N/A |
| article html file updated | 1 November 2018 08:58 CET | Original file | N/A |
| article pdf uploaded. | 1 November 2018 08:57 CET | Version of Record | https://www.mdpi.com/2075-1702/6/4/55/pdf |
| article xml uploaded. | 1 November 2018 08:56 CET | Update | https://www.mdpi.com/2075-1702/6/4/55/xml |
| article xml file uploaded | 1 November 2018 08:56 CET | Original file | N/A |
