| article html file updated | 7 February 2020 04:47 CET | Update | https://www.mdpi.com/1422-0067/17/2/259 |
| article html file updated | 5 May 2019 23:49 CEST | Update | - |
| article html file updated | 26 March 2019 21:12 CET | Original file | - |
| article pdf uploaded. | 19 February 2016 11:55 CET | Version of Record | https://www.mdpi.com/1422-0067/17/2/259/pdf |
| article xml uploaded. | 19 February 2016 11:55 CET | Original file | https://www.mdpi.com/1422-0067/17/2/259/xml |
