| article html file updated | 8 February 2020 08:16 CET | Update | https://www.mdpi.com/2073-8994/9/6/86 |
| article html file updated | 25 September 2019 08:18 CEST | Update | - |
| article html file updated | 3 May 2019 17:30 CEST | Update | - |
| article html file updated | 28 June 2017 14:55 CEST | Update | - |
| article html file updated | 21 June 2017 07:45 CEST | Original file | - |
| article xml uploaded. | 21 June 2017 07:43 CEST | Update | https://www.mdpi.com/2073-8994/9/6/86/xml |
| article pdf uploaded. | 21 June 2017 07:43 CEST | Updated version of record | https://www.mdpi.com/2073-8994/9/6/86/pdf |
