| article html file updated | 8 February 2020 02:24 CET | Update | https://www.mdpi.com/2071-1050/9/4/511 |
| article html file updated | 24 September 2019 01:07 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:42 CEST | Update | N/A |
| article html file updated | 28 April 2017 10:47 CEST | Update | N/A |
| article html file updated | 29 March 2017 10:51 CEST | Original file | N/A |
| article xml uploaded. | 29 March 2017 10:50 CEST | Update | https://www.mdpi.com/2071-1050/9/4/511/xml |
| article pdf uploaded. | 29 March 2017 10:50 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/511/pdf |
| article pdf uploaded. | 28 March 2017 11:51 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/511/pdf-vor |
