| article html file updated | 7 February 2020 03:02 CET | Update | https://www.mdpi.com/1422-0067/17/1/32 |
| article html file updated | 6 May 2019 03:21 CEST | Update | - |
| article html file updated | 26 March 2019 17:43 CET | Original file | - |
| article pdf uploaded. | 4 January 2016 13:18 CET | Version of Record | https://www.mdpi.com/1422-0067/17/1/32/pdf |
| article xml uploaded. | 4 January 2016 13:18 CET | Original file | https://www.mdpi.com/1422-0067/17/1/32/xml |
