| article html file updated | 8 February 2020 03:07 CET | Update | https://www.mdpi.com/2073-4344/7/4/106 |
| article html file updated | 24 September 2019 05:12 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:07 CEST | Update | N/A |
| article html file updated | 28 April 2017 05:41 CEST | Update | N/A |
| article html file updated | 7 April 2017 12:25 CEST | Original file | N/A |
| article xml uploaded. | 7 April 2017 12:24 CEST | Original file | https://www.mdpi.com/2073-4344/7/4/106/xml |
| article pdf uploaded. | 7 April 2017 12:24 CEST | Version of Record | https://www.mdpi.com/2073-4344/7/4/106/pdf |
