| article html file updated | 7 February 2020 09:29 CET | Update | https://www.mdpi.com/1422-0067/17/6/838 |
| article html file updated | 5 May 2019 14:15 CEST | Update | - |
| article html file updated | 27 March 2019 06:09 CET | Update | - |
| article html file updated | 29 June 2016 03:30 CEST | Update | - |
| article html file updated | 30 May 2016 12:11 CEST | Original file | - |
| article xml uploaded. | 30 May 2016 12:10 CEST | Original file | https://www.mdpi.com/1422-0067/17/6/838/xml |
| article pdf uploaded. | 30 May 2016 12:10 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/6/838/pdf |
