| article html file updated | 7 February 2020 13:53 CET | Update | https://www.mdpi.com/2073-4360/8/9/318 |
| article html file updated | 5 May 2019 06:06 CEST | Update | - |
| article html file updated | 27 March 2019 14:47 CET | Update | - |
| article html file updated | 27 September 2016 11:31 CEST | Update | - |
| article html file updated | 25 August 2016 14:08 CEST | Original file | - |
| article xml uploaded. | 25 August 2016 14:07 CEST | Original file | https://www.mdpi.com/2073-4360/8/9/318/xml |
| article pdf uploaded. | 25 August 2016 14:07 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/9/318/pdf |
