| article html file updated | 8 February 2020 20:00 CET | Update | https://www.mdpi.com/2075-4434/5/4/72 |
| article html file updated | 2 May 2019 17:43 CEST | Update | - |
| article html file updated | 2 January 2018 17:11 CET | Update | - |
| article html file updated | 6 November 2017 02:05 CET | Update | - |
| article xml uploaded. | 6 November 2017 02:04 CET | Update | https://www.mdpi.com/2075-4434/5/4/72/xml |
| article xml uploaded. | 6 November 2017 02:04 CET | Update | - |
| article pdf uploaded. | 6 November 2017 02:04 CET | Updated version of record | https://www.mdpi.com/2075-4434/5/4/72/pdf |
| article html file updated | 1 November 2017 05:51 CET | Original file | - |
| article xml uploaded. | 1 November 2017 05:01 CET | Update | - |
| article xml uploaded. | 1 November 2017 05:01 CET | Original file | - |
| article pdf uploaded. | 1 November 2017 05:01 CET | Version of Record | https://www.mdpi.com/2075-4434/5/4/72/pdf-vor |
