| article html file updated | 7 February 2020 18:22 CET | Update | https://www.mdpi.com/2313-0105/2/4/35 |
| article html file updated | 4 May 2019 21:49 CEST | Update | - |
| article html file updated | 22 November 2016 10:40 CET | Original file | - |
| article xml uploaded. | 22 November 2016 10:39 CET | Update | https://www.mdpi.com/2313-0105/2/4/35/xml |
| article xml uploaded. | 22 November 2016 10:38 CET | Original file | - |
| article pdf uploaded. | 22 November 2016 10:38 CET | Version of Record | https://www.mdpi.com/2313-0105/2/4/35/pdf |
