| article html file updated | 8 February 2020 06:48 CET | Update | https://www.mdpi.com/2073-8994/9/6/79 |
| article html file updated | 25 September 2019 00:54 CEST | Update | - |
| article html file updated | 3 May 2019 20:13 CEST | Update | - |
| article html file updated | 28 June 2017 14:54 CEST | Update | - |
| article html file updated | 26 May 2017 13:04 CEST | Original file | - |
| article xml uploaded. | 26 May 2017 13:02 CEST | Original file | https://www.mdpi.com/2073-8994/9/6/79/xml |
| article pdf uploaded. | 26 May 2017 13:02 CEST | Version of Record | https://www.mdpi.com/2073-8994/9/6/79/pdf |
