| article html file updated | 8 February 2020 03:12 CET | Update | https://www.mdpi.com/2073-4344/7/4/111 |
| article html file updated | 24 September 2019 05:41 CEST | Update | - |
| article html file updated | 4 May 2019 02:56 CEST | Update | - |
| article html file updated | 28 April 2017 05:41 CEST | Update | - |
| article html file updated | 9 April 2017 11:20 CEST | Original file | - |
| article xml uploaded. | 9 April 2017 11:19 CEST | Update | https://www.mdpi.com/2073-4344/7/4/111/xml |
| article pdf uploaded. | 9 April 2017 11:19 CEST | Version of Record | https://www.mdpi.com/2073-4344/7/4/111/pdf |
