| article html file updated | 7 February 2020 11:28 CET | Update | https://www.mdpi.com/2073-4441/8/7/281 |
| article html file updated | 5 May 2019 10:34 CEST | Update | - |
| article html file updated | 27 March 2019 09:52 CET | Update | - |
| article html file updated | 28 July 2016 09:47 CEST | Update | - |
| article html file updated | 9 July 2016 12:12 CEST | Original file | - |
| article xml uploaded. | 9 July 2016 12:10 CEST | Update | https://www.mdpi.com/2073-4441/8/7/281/xml |
| article pdf uploaded. | 9 July 2016 12:10 CEST | Version of Record | https://www.mdpi.com/2073-4441/8/7/281/pdf |
