| article html file updated | 8 February 2020 01:41 CET | Update | https://www.mdpi.com/2071-1050/9/3/441 |
| article html file updated | 23 September 2019 21:01 CEST | Update | - |
| article html file updated | 4 May 2019 06:14 CEST | Update | - |
| article html file updated | 28 March 2017 06:15 CEST | Update | - |
| article html file updated | 17 March 2017 11:50 CET | Original file | - |
| article xml uploaded. | 17 March 2017 11:49 CET | Original file | https://www.mdpi.com/2071-1050/9/3/441/xml |
| article pdf uploaded. | 17 March 2017 11:49 CET | Version of Record | https://www.mdpi.com/2071-1050/9/3/441/pdf |
