| article html file updated | 7 February 2020 04:12 CET | Update | https://www.mdpi.com/1422-0067/17/2/204 |
| article html file updated | 6 May 2019 01:07 CEST | Update | - |
| article html file updated | 26 March 2019 19:58 CET | Original file | - |
| article pdf uploaded. | 2 February 2016 12:00 CET | Version of Record | https://www.mdpi.com/1422-0067/17/2/204/pdf |
| article xml uploaded. | 2 February 2016 12:00 CET | Original file | https://www.mdpi.com/1422-0067/17/2/204/xml |
