| article html file updated | 7 February 2020 19:13 CET | Update | https://www.mdpi.com/1422-0067/17/12/1838 |
| article html file updated | 4 May 2019 20:05 CEST | Update | - |
| article html file updated | 27 December 2016 10:43 CET | Update | - |
| article html file updated | 7 December 2016 16:59 CET | Original file | - |
| article xml uploaded. | 7 December 2016 16:58 CET | Original file | https://www.mdpi.com/1422-0067/17/12/1838/xml |
| article pdf uploaded. | 7 December 2016 16:58 CET | Version of Record | https://www.mdpi.com/1422-0067/17/12/1838/pdf |
