| article html file updated | 7 February 2020 09:16 CET | Update | https://www.mdpi.com/2073-4441/8/6/222 |
| article html file updated | 21 September 2019 17:50 CEST | Update | - |
| article html file updated | 5 May 2019 14:43 CEST | Update | - |
| article html file updated | 27 March 2019 05:43 CET | Update | - |
| article html file updated | 29 June 2016 12:12 CEST | Update | - |
| article html file updated | 25 May 2016 14:20 CEST | Original file | - |
| article xml uploaded. | 25 May 2016 14:18 CEST | Original file | https://www.mdpi.com/2073-4441/8/6/222/xml |
| article pdf uploaded. | 25 May 2016 14:18 CEST | Version of Record | https://www.mdpi.com/2073-4441/8/6/222/pdf |
