| article html file updated | 8 February 2020 03:14 CET | Update | https://www.mdpi.com/2073-4352/7/4/106 |
| article html file updated | 24 September 2019 05:49 CEST | Update | - |
| article html file updated | 4 May 2019 02:53 CEST | Update | - |
| article html file updated | 28 April 2017 05:49 CEST | Update | - |
| article html file updated | 24 April 2017 04:11 CEST | Original file | - |
| article xml uploaded. | 24 April 2017 04:10 CEST | Update | https://www.mdpi.com/2073-4352/7/4/106/xml |
| article pdf uploaded. | 10 April 2017 10:31 CEST | Version of Record | https://www.mdpi.com/2073-4352/7/4/106/pdf |
