| article html file updated | 7 February 2020 05:37 CET | Update | https://www.mdpi.com/2227-7102/6/1/10 |
| article html file updated | 5 May 2019 22:03 CEST | Update | - |
| article html file updated | 26 March 2019 22:56 CET | Update | - |
| article html file updated | 27 October 2017 09:48 CEST | Original file | - |
| article pdf uploaded. | 9 March 2016 09:40 CET | Version of Record | https://www.mdpi.com/2227-7102/6/1/10/pdf |
| article xml uploaded. | 9 March 2016 09:40 CET | Original file | https://www.mdpi.com/2227-7102/6/1/10/xml |
