| article html file updated | 7 February 2020 16:17 CET | Update | https://www.mdpi.com/1422-0067/17/10/1720 |
| article html file updated | 5 May 2019 01:48 CEST | Update | - |
| article html file updated | 31 October 2016 07:56 CET | Update | - |
| article html file updated | 13 October 2016 16:18 CEST | Original file | - |
| article xml uploaded. | 13 October 2016 16:17 CEST | Original file | https://www.mdpi.com/1422-0067/17/10/1720/xml |
| article pdf uploaded. | 13 October 2016 16:17 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/10/1720/pdf |
