| article html file updated | 7 February 2020 03:27 CET | Update | https://www.mdpi.com/2079-6382/5/1/7 |
| article html file updated | 6 May 2019 02:33 CEST | Update | - |
| article html file updated | 26 March 2019 18:29 CET | Update | - |
| article html file updated | 29 March 2016 12:25 CEST | Original file | - |
| article pdf uploaded. | 15 January 2016 09:07 CET | Version of Record | https://www.mdpi.com/2079-6382/5/1/7/pdf |
| article xml uploaded. | 15 January 2016 09:07 CET | Original file | https://www.mdpi.com/2079-6382/5/1/7/xml |
