| article html file updated | 7 February 2020 10:08 CET | Update | https://www.mdpi.com/1999-4915/8/6/167 |
| article html file updated | 5 May 2019 13:00 CEST | Update | N/A |
| article html file updated | 27 March 2019 07:25 CET | Update | N/A |
| article html file updated | 29 June 2016 10:17 CEST | Update | N/A |
| article html file updated | 14 June 2016 11:41 CEST | Original file | N/A |
| article xml uploaded. | 14 June 2016 11:40 CEST | Original file | https://www.mdpi.com/1999-4915/8/6/167/xml |
| article pdf uploaded. | 14 June 2016 11:40 CEST | Version of Record | https://www.mdpi.com/1999-4915/8/6/167/pdf |
