| article html file updated | 8 February 2020 22:22 CET | Update | https://www.mdpi.com/2227-7080/5/4/75 |
| article html file updated | 28 September 2019 19:00 CEST | Update | - |
| article html file updated | 2 May 2019 12:24 CEST | Update | - |
| article html file updated | 18 April 2019 10:00 CEST | Update | - |
| article html file updated | 2 January 2018 11:14 CET | Update | - |
| article html file updated | 30 November 2017 17:18 CET | Update | - |
| article xml uploaded. | 30 November 2017 13:46 CET | Update | https://www.mdpi.com/2227-7080/5/4/75/xml |
| article pdf uploaded. | 30 November 2017 13:46 CET | Updated version of record | https://www.mdpi.com/2227-7080/5/4/75/pdf |
| article html file updated | 27 November 2017 11:27 CET | Original file | - |
| article xml uploaded. | 27 November 2017 11:25 CET | Update | - |
| article xml uploaded. | 27 November 2017 11:25 CET | Original file | - |
| article pdf uploaded. | 27 November 2017 11:25 CET | Version of Record | https://www.mdpi.com/2227-7080/5/4/75/pdf-vor |
