| article html file updated | 6 February 2020 22:33 CET | Update | https://www.mdpi.com/1422-0067/16/9/21539 |
| article html file updated | 6 May 2019 11:51 CEST | Update | - |
| article html file updated | 26 March 2019 10:15 CET | Update | - |
| article html file updated | 14 October 2015 13:01 CEST | Original file | - |
| article xml file uploaded | 14 October 2015 13:01 CEST | Original file | https://www.mdpi.com/1422-0067/16/9/21539/xml |
| article pdf uploaded. | 8 September 2015 17:09 CEST | Version of Record | https://www.mdpi.com/1422-0067/16/9/21539/pdf |
