| article html file updated | 8 February 2020 19:57 CET | Update | https://www.mdpi.com/2227-9067/4/11/93 |
| article html file updated | 28 September 2019 03:23 CEST | Update | - |
| article html file updated | 2 May 2019 17:50 CEST | Update | - |
| article html file updated | 30 November 2017 10:29 CET | Update | - |
| article html file updated | 2 November 2017 10:48 CET | Original file | - |
| article xml uploaded. | 2 November 2017 10:47 CET | Original file | https://www.mdpi.com/2227-9067/4/11/93/xml |
| article pdf uploaded. | 2 November 2017 10:47 CET | Updated version of record | https://www.mdpi.com/2227-9067/4/11/93/pdf |
| article pdf uploaded. | 31 October 2017 14:15 CET | Version of Record | https://www.mdpi.com/2227-9067/4/11/93/pdf-vor |
