| article html file updated | 7 February 2020 07:23 CET | Update | https://www.mdpi.com/2071-1050/8/4/378 |
| article html file updated | 5 May 2019 18:25 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:06 CET | Update | N/A |
| article html file updated | 29 April 2016 06:02 CEST | Update | N/A |
| article html file updated | 16 April 2016 09:13 CEST | Original file | N/A |
| article xml uploaded. | 16 April 2016 09:12 CEST | Original file | https://www.mdpi.com/2071-1050/8/4/378/xml |
| article pdf uploaded. | 16 April 2016 09:12 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/4/378/pdf |
