| article html file updated | 7 February 2020 04:24 CET | Update | https://www.mdpi.com/1422-0067/17/2/219 |
| article html file updated | 6 May 2019 00:42 CEST | Update | - |
| article html file updated | 26 March 2019 20:24 CET | Original file | - |
| article pdf uploaded. | 6 February 2016 09:23 CET | Version of Record | https://www.mdpi.com/1422-0067/17/2/219/pdf |
| article xml uploaded. | 6 February 2016 09:23 CET | Original file | https://www.mdpi.com/1422-0067/17/2/219/xml |
