| article html file updated | 7 February 2020 14:56 CET | Update | https://www.mdpi.com/1422-0067/17/9/1539 |
| article html file updated | 5 May 2019 04:11 CEST | Update | - |
| article html file updated | 27 September 2016 06:20 CEST | Update | - |
| article html file updated | 13 September 2016 12:38 CEST | Original file | - |
| article xml uploaded. | 13 September 2016 12:36 CEST | Update | https://www.mdpi.com/1422-0067/17/9/1539/xml |
| article xml uploaded. | 13 September 2016 12:36 CEST | Update | - |
| article xml uploaded. | 13 September 2016 12:36 CEST | Update | - |
| article xml uploaded. | 13 September 2016 12:36 CEST | Original file | - |
| article pdf uploaded. | 13 September 2016 12:36 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/9/1539/pdf |
