| article html file updated | 9 February 2020 00:22 CET | Update | https://www.mdpi.com/2071-1050/9/12/2351 |
| article html file updated | 29 September 2019 06:58 CEST | Update | - |
| article html file updated | 2 May 2019 07:55 CEST | Update | - |
| article html file updated | 18 April 2019 05:44 CEST | Update | - |
| article html file updated | 2 January 2018 19:18 CET | Update | - |
| article html file updated | 18 December 2017 06:27 CET | Original file | - |
| article xml uploaded. | 18 December 2017 06:26 CET | Original file | https://www.mdpi.com/2071-1050/9/12/2351/xml |
| article pdf uploaded. | 18 December 2017 06:26 CET | Version of Record | https://www.mdpi.com/2071-1050/9/12/2351/pdf |
