| article html file updated | 7 February 2020 22:46 CET | Update | https://www.mdpi.com/2079-4991/7/2/34 |
| article html file updated | 23 September 2019 04:28 CEST | Update | - |
| article html file updated | 4 May 2019 12:31 CEST | Update | - |
| article html file updated | 2 March 2017 09:05 CET | Update | - |
| article html file updated | 7 February 2017 10:33 CET | Original file | - |
| article xml uploaded. | 7 February 2017 09:51 CET | Update | https://www.mdpi.com/2079-4991/7/2/34/xml |
| article xml uploaded. | 7 February 2017 09:51 CET | Original file | - |
| article pdf uploaded. | 7 February 2017 09:51 CET | Version of Record | https://www.mdpi.com/2079-4991/7/2/34/pdf |
