| article html file updated | 7 February 2020 07:09 CET | Update | https://www.mdpi.com/2073-4441/8/4/143 |
| article html file updated | 5 May 2019 18:53 CEST | Update | - |
| article html file updated | 27 March 2019 01:39 CET | Update | - |
| article html file updated | 28 April 2016 12:23 CEST | Update | - |
| article html file updated | 13 April 2016 09:41 CEST | Original file | - |
| article xml uploaded. | 13 April 2016 09:40 CEST | Update | https://www.mdpi.com/2073-4441/8/4/143/xml |
| article pdf uploaded. | 13 April 2016 09:40 CEST | Version of Record | https://www.mdpi.com/2073-4441/8/4/143/pdf |
