| article html file updated | 7 February 2020 09:11 CET | Update | https://www.mdpi.com/2072-6643/8/6/318 |
| article html file updated | 5 May 2019 14:51 CEST | Update | - |
| article html file updated | 27 March 2019 05:36 CET | Update | - |
| article html file updated | 29 June 2016 03:04 CEST | Update | - |
| article html file updated | 24 May 2016 11:10 CEST | Original file | - |
| article xml uploaded. | 24 May 2016 11:08 CEST | Original file | https://www.mdpi.com/2072-6643/8/6/318/xml |
| article pdf uploaded. | 24 May 2016 11:08 CEST | Version of Record | https://www.mdpi.com/2072-6643/8/6/318/pdf |
