| article html file updated | 7 February 2020 14:00 CET | Update | https://www.mdpi.com/2075-4701/6/9/203 |
| article html file updated | 5 May 2019 05:53 CEST | Update | - |
| article html file updated | 27 March 2019 15:02 CET | Update | - |
| article html file updated | 27 September 2016 10:03 CEST | Update | - |
| article html file updated | 27 August 2016 10:25 CEST | Original file | - |
| article xml uploaded. | 27 August 2016 10:24 CEST | Original file | https://www.mdpi.com/2075-4701/6/9/203/xml |
| article pdf uploaded. | 27 August 2016 10:24 CEST | Version of Record | https://www.mdpi.com/2075-4701/6/9/203/pdf |
