| article html file updated | 7 February 2020 04:04 CET | Update | https://www.mdpi.com/1422-0067/17/2/181 |
| article html file updated | 6 May 2019 01:22 CEST | Update | - |
| article html file updated | 26 March 2019 19:43 CET | Original file | - |
| article pdf uploaded. | 29 January 2016 11:21 CET | Version of Record | https://www.mdpi.com/1422-0067/17/2/181/pdf |
| article xml uploaded. | 29 January 2016 11:21 CET | Original file | https://www.mdpi.com/1422-0067/17/2/181/xml |
