| article html file updated | 7 February 2020 14:55 CET | Update | https://www.mdpi.com/1422-0067/17/9/1537 |
| article html file updated | 5 May 2019 04:13 CEST | Update | - |
| article html file updated | 27 September 2016 06:19 CEST | Update | - |
| article html file updated | 13 September 2016 22:42 CEST | Original file | - |
| article xml uploaded. | 13 September 2016 11:51 CEST | Update | https://www.mdpi.com/1422-0067/17/9/1537/xml |
| article xml uploaded. | 13 September 2016 11:51 CEST | Original file | - |
| article pdf uploaded. | 13 September 2016 11:51 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/9/1537/pdf |
