| article html file updated | 7 February 2020 09:10 CET | Update | https://www.mdpi.com/1999-4915/8/6/151 |
| article html file updated | 5 May 2019 14:54 CEST | Update | - |
| article html file updated | 27 March 2019 05:33 CET | Update | - |
| article html file updated | 29 June 2016 10:10 CEST | Update | - |
| article html file updated | 24 May 2016 08:00 CEST | Original file | - |
| article xml uploaded. | 24 May 2016 07:58 CEST | Update | https://www.mdpi.com/1999-4915/8/6/151/xml |
| article pdf uploaded. | 24 May 2016 07:58 CEST | Version of Record | https://www.mdpi.com/1999-4915/8/6/151/pdf |
