| article html file updated | 7 February 2020 09:53 CET | Update | https://www.mdpi.com/1422-0067/17/6/899 |
| article html file updated | 5 May 2019 13:29 CEST | Update | - |
| article html file updated | 27 March 2019 06:57 CET | Update | - |
| article html file updated | 29 June 2016 03:49 CEST | Update | - |
| article html file updated | 7 June 2016 13:45 CEST | Original file | - |
| article xml uploaded. | 7 June 2016 13:44 CEST | Original file | https://www.mdpi.com/1422-0067/17/6/899/xml |
| article pdf uploaded. | 7 June 2016 13:44 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/6/899/pdf |
