| article html file updated | 7 February 2020 03:15 CET | Update | https://www.mdpi.com/2079-4991/6/1/15 |
| article html file updated | 6 May 2019 02:55 CEST | Update | N/A |
| article html file updated | 26 March 2019 18:05 CET | Update | N/A |
| article html file updated | 24 February 2017 10:14 CET | Update | N/A |
| article html file updated | 10 February 2017 03:55 CET | Original file | N/A |
| article pdf uploaded. | 11 January 2016 15:08 CET | Version of Record | https://www.mdpi.com/2079-4991/6/1/15/pdf |
| article xml uploaded. | 11 January 2016 15:08 CET | Original file | https://www.mdpi.com/2079-4991/6/1/15/xml |
