| article html file updated | 7 February 2020 09:42 CET | Update | https://www.mdpi.com/2075-163X/6/2/53 |
| article html file updated | 5 May 2019 13:49 CEST | Update | - |
| article html file updated | 27 March 2019 06:34 CET | Update | - |
| article html file updated | 4 July 2016 06:26 CEST | Update | - |
| article html file updated | 3 June 2016 10:20 CEST | Original file | - |
| article xml uploaded. | 3 June 2016 10:19 CEST | Original file | https://www.mdpi.com/2075-163X/6/2/53/xml |
| article pdf uploaded. | 3 June 2016 10:19 CEST | Version of Record | https://www.mdpi.com/2075-163X/6/2/53/pdf |
