| article html file updated | 7 February 2020 06:37 CET | Update | https://www.mdpi.com/2075-163X/6/2/27 |
| article html file updated | 5 May 2019 19:59 CEST | Update | - |
| article html file updated | 27 March 2019 00:41 CET | Update | - |
| article html file updated | 4 July 2016 06:17 CEST | Update | - |
| article html file updated | 30 March 2016 12:34 CEST | Original file | - |
| article xml uploaded. | 30 March 2016 12:33 CEST | Update | https://www.mdpi.com/2075-163X/6/2/27/xml |
| article pdf uploaded. | 30 March 2016 12:33 CEST | Version of Record | https://www.mdpi.com/2075-163X/6/2/27/pdf |
