| article html file updated | 7 February 2020 15:14 CET | Update | https://www.mdpi.com/1422-0067/17/9/1576 |
| article html file updated | 5 May 2019 03:40 CEST | Update | N/A |
| article html file updated | 27 September 2016 06:27 CEST | Update | N/A |
| article html file updated | 20 September 2016 12:24 CEST | Original file | N/A |
| article xml uploaded. | 20 September 2016 12:22 CEST | Update | https://www.mdpi.com/1422-0067/17/9/1576/xml |
| article xml uploaded. | 20 September 2016 12:22 CEST | Original file | N/A |
| article pdf uploaded. | 20 September 2016 12:22 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/9/1576/pdf |
