| article html file updated | 8 February 2020 03:58 CET | Update | https://www.mdpi.com/2075-163X/7/4/61 |
| article html file updated | 24 September 2019 10:01 CEST | Update | - |
| article html file updated | 4 May 2019 01:30 CEST | Update | - |
| article html file updated | 28 April 2017 10:04 CEST | Update | - |
| article html file updated | 20 April 2017 10:03 CEST | Original file | - |
| article xml uploaded. | 20 April 2017 10:02 CEST | Update | https://www.mdpi.com/2075-163X/7/4/61/xml |
| article pdf uploaded. | 20 April 2017 10:02 CEST | Version of Record | https://www.mdpi.com/2075-163X/7/4/61/pdf |
