| article html file updated | 8 February 2020 18:32 CET | Update | https://www.mdpi.com/2076-0787/6/4/75 |
| article html file updated | 2 May 2019 21:06 CEST | Update | - |
| article html file updated | 17 October 2017 05:01 CEST | Update | - |
| article xml uploaded. | 17 October 2017 05:00 CEST | Update | https://www.mdpi.com/2076-0787/6/4/75/xml |
| article pdf uploaded. | 17 October 2017 05:00 CEST | Updated version of record | https://www.mdpi.com/2076-0787/6/4/75/pdf |
| article html file updated | 16 October 2017 08:39 CEST | Update | - |
| article xml uploaded. | 16 October 2017 08:38 CEST | Update | - |
| article pdf uploaded. | 16 October 2017 08:38 CEST | Updated version of record | https://www.mdpi.com/2076-0787/6/4/75/pdf-vor |
| article html file updated | 16 October 2017 04:52 CEST | Update | - |
| article xml uploaded. | 16 October 2017 04:50 CEST | Update | - |
| article pdf uploaded. | 16 October 2017 04:50 CEST | Updated version of record | https://www.mdpi.com/2076-0787/6/4/75/pdf-vor |
| article html file updated | 15 October 2017 14:42 CEST | Original file | - |
| article xml uploaded. | 15 October 2017 14:41 CEST | Original file | - |
| article pdf uploaded. | 15 October 2017 14:41 CEST | Version of Record | https://www.mdpi.com/2076-0787/6/4/75/pdf-vor |