| article html file updated | 8 February 2020 02:33 CET | Update | https://www.mdpi.com/2071-1050/9/4/522 |
| article html file updated | 24 September 2019 02:01 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:21 CEST | Update | N/A |
| article html file updated | 28 April 2017 10:48 CEST | Update | N/A |
| article html file updated | 30 March 2017 11:53 CEST | Original file | N/A |
| article xml uploaded. | 30 March 2017 11:51 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/522/xml |
| article pdf uploaded. | 30 March 2017 11:51 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/522/pdf |
