| article html file updated | 7 February 2020 13:56 CET | Update | https://www.mdpi.com/2072-6643/8/9/525 |
| article html file updated | 5 May 2019 06:01 CEST | Update | - |
| article html file updated | 27 March 2019 14:53 CET | Update | - |
| article html file updated | 27 September 2016 11:30 CEST | Update | - |
| article html file updated | 26 August 2016 10:11 CEST | Original file | - |
| article xml uploaded. | 26 August 2016 09:26 CEST | Original file | https://www.mdpi.com/2072-6643/8/9/525/xml |
| article pdf uploaded. | 26 August 2016 09:26 CEST | Version of Record | https://www.mdpi.com/2072-6643/8/9/525/pdf |
