| article html file updated | 7 February 2020 14:49 CET | Update | https://www.mdpi.com/2220-9964/5/9/163 |
| article html file updated | 5 May 2019 04:23 CEST | Update | - |
| article html file updated | 27 September 2016 09:42 CEST | Update | - |
| article html file updated | 12 September 2016 06:26 CEST | Original file | - |
| article xml uploaded. | 12 September 2016 06:25 CEST | Original file | https://www.mdpi.com/2220-9964/5/9/163/xml |
| article pdf uploaded. | 12 September 2016 06:25 CEST | Version of Record | https://www.mdpi.com/2220-9964/5/9/163/pdf |
