| article html file updated | 7 February 2020 09:41 CET | Update | https://www.mdpi.com/1422-0067/17/6/871 |
| article html file updated | 5 May 2019 13:52 CEST | Update | - |
| article html file updated | 27 March 2019 06:32 CET | Update | - |
| article html file updated | 29 June 2016 03:39 CEST | Update | - |
| article html file updated | 2 June 2016 14:44 CEST | Original file | - |
| article xml uploaded. | 2 June 2016 14:42 CEST | Original file | https://www.mdpi.com/1422-0067/17/6/871/xml |
| article pdf uploaded. | 2 June 2016 14:42 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/6/871/pdf |
