| article html file updated | 7 February 2020 06:20 CET | Update | https://new.mdpi.com/2077-0472/6/2/11 |
| article html file updated | 21 September 2019 13:49 CEST | Update | - |
| article html file updated | 5 May 2019 20:34 CEST | Update | - |
| article html file updated | 27 March 2019 00:12 CET | Update | - |
| article html file updated | 27 June 2016 12:09 CEST | Original file | - |
| article pdf uploaded. | 24 March 2016 13:31 CET | Version of Record | https://new.mdpi.com/2077-0472/6/2/11/pdf |
