| article html file updated | 7 February 2020 16:57 CET | Update | https://www.mdpi.com/2311-553X/2/4/12 |
| article html file updated | 22 September 2019 03:53 CEST | Update | - |
| article html file updated | 5 May 2019 00:30 CEST | Update | - |
| article html file updated | 30 December 2016 05:59 CET | Update | - |
| article html file updated | 25 October 2016 12:39 CEST | Original file | - |
| article xml uploaded. | 25 October 2016 12:38 CEST | Update | https://www.mdpi.com/2311-553X/2/4/12/xml |
| article xml uploaded. | 25 October 2016 12:38 CEST | Original file | - |
| article pdf uploaded. | 25 October 2016 12:38 CEST | Version of Record | https://www.mdpi.com/2311-553X/2/4/12/pdf |
