| article html file updated | 8 February 2020 03:08 CET | Update | https://www.mdpi.com/2075-163X/7/4/55 |
| article html file updated | 24 September 2019 05:18 CEST | Update | - |
| article html file updated | 4 May 2019 03:05 CEST | Update | - |
| article html file updated | 28 April 2017 10:02 CEST | Update | - |
| article html file updated | 10 April 2017 10:50 CEST | Original file | - |
| article xml uploaded. | 10 April 2017 10:49 CEST | Update | https://www.mdpi.com/2075-163X/7/4/55/xml |
| article pdf uploaded. | 10 April 2017 10:48 CEST | Updated version of record | https://www.mdpi.com/2075-163X/7/4/55/pdf |
| article pdf uploaded. | 7 April 2017 14:46 CEST | Version of Record | https://www.mdpi.com/2075-163X/7/4/55/pdf-vor |
