| article html file updated | 7 February 2020 15:05 CET | Update | https://www.mdpi.com/1422-0067/17/9/1569 |
| article html file updated | 5 May 2019 03:54 CEST | Update | - |
| article html file updated | 27 September 2016 06:25 CEST | Update | - |
| article html file updated | 16 September 2016 09:55 CEST | Original file | - |
| article xml uploaded. | 16 September 2016 09:53 CEST | Original file | https://www.mdpi.com/1422-0067/17/9/1569/xml |
| article pdf uploaded. | 16 September 2016 09:53 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/9/1569/pdf |
