| article html file updated | 7 February 2020 07:34 CET | Update | https://www.mdpi.com/2073-4441/8/4/158 |
| article html file updated | 5 May 2019 18:01 CEST | Update | - |
| article html file updated | 27 March 2019 02:30 CET | Update | - |
| article html file updated | 28 April 2016 12:30 CEST | Update | - |
| article html file updated | 20 April 2016 16:42 CEST | Original file | - |
| article xml uploaded. | 20 April 2016 16:40 CEST | Update | https://www.mdpi.com/2073-4441/8/4/158/xml |
| article pdf uploaded. | 20 April 2016 16:40 CEST | Version of Record | https://www.mdpi.com/2073-4441/8/4/158/pdf |
