| article html file updated | 7 February 2020 23:27 CET | Update | https://www.mdpi.com/2071-1050/9/2/164 |
| article html file updated | 23 September 2019 08:13 CEST | Update | - |
| article html file updated | 4 May 2019 11:09 CEST | Update | - |
| article html file updated | 1 March 2017 10:20 CET | Update | - |
| article html file updated | 15 February 2017 11:28 CET | Original file | - |
| article xml uploaded. | 15 February 2017 11:26 CET | Original file | https://www.mdpi.com/2071-1050/9/2/164/xml |
| article pdf uploaded. | 15 February 2017 11:26 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/164/pdf |
