| article html file updated | 7 February 2020 14:41 CET | Update | https://www.mdpi.com/1422-0067/17/9/1501 |
| article html file updated | 5 May 2019 04:39 CEST | Update | - |
| article html file updated | 27 September 2016 06:14 CEST | Update | - |
| article html file updated | 8 September 2016 12:53 CEST | Original file | - |
| article xml uploaded. | 8 September 2016 12:52 CEST | Update | https://www.mdpi.com/1422-0067/17/9/1501/xml |
| article xml uploaded. | 8 September 2016 12:52 CEST | Original file | - |
| article pdf uploaded. | 8 September 2016 12:51 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/9/1501/pdf |
