| article html file updated | 6 February 2020 09:05 CET | Update | https://www.mdpi.com/1999-4915/6/5/2038 |
| article html file updated | 7 May 2019 14:53 CEST | Update | - |
| article html file updated | 21 March 2019 16:40 CET | Update | - |
| article html file updated | 20 August 2015 06:00 CEST | Update | - |
| article html file updated | 5 June 2014 08:50 CEST | Original file | - |
| article xml file uploaded | 5 June 2014 08:50 CEST | Original file | https://www.mdpi.com/1999-4915/6/5/2038/xml |
| article pdf uploaded. | 7 May 2014 09:36 CEST | Version of Record | https://www.mdpi.com/1999-4915/6/5/2038/pdf |
