| article html file updated | 8 February 2020 14:27 CET | Update | https://www.mdpi.com/2227-9067/4/9/75 |
| article html file updated | 3 May 2019 05:13 CEST | Update | N/A |
| article html file updated | 30 September 2017 10:18 CEST | Update | N/A |
| article pdf uploaded. | 31 August 2017 02:57 CEST | Updated version of record | https://www.mdpi.com/2227-9067/4/9/75/pdf |
| article html file updated | 29 August 2017 03:20 CEST | Original file | N/A |
| article xml uploaded. | 29 August 2017 03:18 CEST | Update | https://www.mdpi.com/2227-9067/4/9/75/xml |
| article xml uploaded. | 29 August 2017 03:18 CEST | Update | N/A |
| article xml uploaded. | 29 August 2017 03:18 CEST | Update | N/A |
| article xml uploaded. | 29 August 2017 03:18 CEST | Original file | N/A |
| article pdf uploaded. | 29 August 2017 03:18 CEST | Updated version of record | https://www.mdpi.com/2227-9067/4/9/75/pdf-vor |
| article pdf uploaded. | 24 August 2017 16:19 CEST | Version of Record | https://www.mdpi.com/2227-9067/4/9/75/pdf-vor |
