| article html file updated | 7 February 2020 04:30 CET | Update | https://www.mdpi.com/2071-1050/8/2/167 |
| article html file updated | 6 May 2019 00:29 CEST | Update | N/A |
| article html file updated | 26 March 2019 20:37 CET | Original file | N/A |
| article pdf uploaded. | 16 February 2016 10:07 CET | Updated version of record | https://www.mdpi.com/2071-1050/8/2/167/pdf |
| article xml uploaded. | 16 February 2016 10:07 CET | Original file | https://www.mdpi.com/2071-1050/8/2/167/xml |
| article pdf uploaded. | 11 February 2016 08:47 CET | Version of Record | https://www.mdpi.com/2071-1050/8/2/167/pdf-vor |
