| article html file updated | 8 February 2020 02:38 CET | Update | https://www.mdpi.com/2073-4441/9/4/243 |
| article html file updated | 24 September 2019 02:29 CEST | Update | - |
| article html file updated | 4 May 2019 04:11 CEST | Update | - |
| article html file updated | 28 April 2017 11:20 CEST | Update | - |
| article html file updated | 31 March 2017 16:23 CEST | Original file | - |
| article xml uploaded. | 31 March 2017 16:22 CEST | Original file | https://www.mdpi.com/2073-4441/9/4/243/xml |
| article pdf uploaded. | 31 March 2017 16:22 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/4/243/pdf |
