| article html file updated | 7 February 2020 14:32 CET | Update | https://www.mdpi.com/1422-0067/17/9/1481 |
| article html file updated | 5 May 2019 04:55 CEST | Update | - |
| article html file updated | 27 September 2016 06:12 CEST | Update | - |
| article html file updated | 6 September 2016 12:10 CEST | Original file | - |
| article xml uploaded. | 6 September 2016 12:09 CEST | Update | https://www.mdpi.com/1422-0067/17/9/1481/xml |
| article xml uploaded. | 6 September 2016 12:09 CEST | Original file | - |
| article pdf uploaded. | 6 September 2016 12:09 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/9/1481/pdf |
