| article html file updated | 8 February 2020 22:13 CET | Update | https://www.mdpi.com/2227-9032/5/4/89 |
| article html file updated | 28 September 2019 18:07 CEST | Update | - |
| article html file updated | 2 May 2019 12:44 CEST | Update | - |
| article html file updated | 18 April 2019 10:21 CEST | Update | - |
| article html file updated | 2 January 2018 12:44 CET | Update | - |
| article html file updated | 11 December 2017 08:45 CET | Update | - |
| article xml uploaded. | 11 December 2017 08:44 CET | Update | https://www.mdpi.com/2227-9032/5/4/89/xml |
| article pdf uploaded. | 11 December 2017 08:44 CET | Updated version of record | https://www.mdpi.com/2227-9032/5/4/89/pdf |
| article html file updated | 25 November 2017 05:22 CET | Original file | - |
| article xml uploaded. | 25 November 2017 05:21 CET | Original file | - |
| article pdf uploaded. | 25 November 2017 05:21 CET | Version of Record | https://www.mdpi.com/2227-9032/5/4/89/pdf-vor |
