| article html file updated | 8 February 2020 01:46 CET | Update | https://www.mdpi.com/2071-1050/9/3/437 |
| article html file updated | 23 September 2019 21:32 CEST | Update | - |
| article html file updated | 4 May 2019 06:02 CEST | Update | - |
| article html file updated | 28 March 2017 06:14 CEST | Update | - |
| article html file updated | 19 March 2017 05:26 CET | Original file | - |
| article xml uploaded. | 19 March 2017 05:24 CET | Original file | https://www.mdpi.com/2071-1050/9/3/437/xml |
| article pdf uploaded. | 19 March 2017 05:24 CET | Version of Record | https://www.mdpi.com/2071-1050/9/3/437/pdf |
