| article html file updated | 7 February 2020 07:31 CET | Update | https://www.mdpi.com/2073-4441/8/4/154 |
| article html file updated | 5 May 2019 18:07 CEST | Update | - |
| article html file updated | 27 March 2019 02:24 CET | Update | - |
| article html file updated | 28 April 2016 12:29 CEST | Update | - |
| article html file updated | 20 April 2016 09:45 CEST | Original file | - |
| article xml uploaded. | 20 April 2016 09:44 CEST | Original file | https://www.mdpi.com/2073-4441/8/4/154/xml |
| article pdf uploaded. | 20 April 2016 09:44 CEST | Version of Record | https://www.mdpi.com/2073-4441/8/4/154/pdf |
