| article html file updated | 7 February 2020 14:25 CET | Update | https://www.mdpi.com/1422-0067/17/9/1471 |
| article html file updated | 5 May 2019 05:09 CEST | Update | - |
| article html file updated | 27 September 2016 06:10 CEST | Update | - |
| article html file updated | 3 September 2016 08:29 CEST | Original file | - |
| article xml uploaded. | 3 September 2016 08:28 CEST | Original file | https://www.mdpi.com/1422-0067/17/9/1471/xml |
| article pdf uploaded. | 3 September 2016 08:28 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/9/1471/pdf |
