| article html file updated | 7 February 2020 14:44 CET | Update | https://www.mdpi.com/1422-0067/17/9/1515 |
| article html file updated | 5 May 2019 04:32 CEST | Update | - |
| article html file updated | 27 September 2016 06:16 CEST | Update | - |
| article html file updated | 9 September 2016 11:40 CEST | Original file | - |
| article xml uploaded. | 9 September 2016 11:38 CEST | Update | https://www.mdpi.com/1422-0067/17/9/1515/xml |
| article xml uploaded. | 9 September 2016 11:38 CEST | Original file | - |
| article pdf uploaded. | 9 September 2016 11:38 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/9/1515/pdf |
