| article html file updated | 7 February 2020 19:40 CET | Update | https://www.mdpi.com/1422-0067/17/12/2111 |
| article html file updated | 22 September 2019 11:50 CEST | Update | - |
| article html file updated | 4 May 2019 19:05 CEST | Update | - |
| article html file updated | 27 December 2016 11:17 CET | Update | - |
| article html file updated | 15 December 2016 13:57 CET | Original file | - |
| article xml uploaded. | 15 December 2016 13:56 CET | Original file | https://www.mdpi.com/1422-0067/17/12/2111/xml |
| article pdf uploaded. | 15 December 2016 13:56 CET | Version of Record | https://www.mdpi.com/1422-0067/17/12/2111/pdf |
