| article html file updated | 7 February 2020 09:03 CET | Update | https://www.mdpi.com/2075-163X/6/2/46 |
| article html file updated | 5 May 2019 15:08 CEST | Update | - |
| article html file updated | 27 March 2019 05:20 CET | Update | - |
| article html file updated | 4 July 2016 06:24 CEST | Update | - |
| article html file updated | 20 May 2016 15:19 CEST | Original file | - |
| article xml uploaded. | 20 May 2016 15:17 CEST | Update | https://www.mdpi.com/2075-163X/6/2/46/xml |
| article pdf uploaded. | 20 May 2016 15:17 CEST | Version of Record | https://www.mdpi.com/2075-163X/6/2/46/pdf |
