| article html file updated | 8 February 2020 03:13 CET | Update | https://www.mdpi.com/2071-1050/9/4/575 |
| article html file updated | 24 September 2019 05:47 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:54 CEST | Update | N/A |
| article html file updated | 28 April 2017 10:59 CEST | Update | N/A |
| article html file updated | 10 April 2017 09:24 CEST | Original file | N/A |
| article xml uploaded. | 10 April 2017 09:22 CEST | Update | https://www.mdpi.com/2071-1050/9/4/575/xml |
| article pdf uploaded. | 10 April 2017 09:22 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/575/pdf |
