| article html file updated | 25 September 2019 19:16 CEST | Update | https://www.mdpi.com/2218-1989/7/3/33 |
| article html file updated | 3 May 2019 13:38 CEST | Update | - |
| article html file updated | 30 September 2017 11:36 CEST | Update | - |
| article html file updated | 6 July 2017 16:35 CEST | Original file | - |
| article xml uploaded. | 6 July 2017 16:34 CEST | Original file | https://www.mdpi.com/2218-1989/7/3/33/xml |
| article pdf uploaded. | 6 July 2017 16:34 CEST | Version of Record | https://www.mdpi.com/2218-1989/7/3/33/pdf |
