| article html file updated | 6 February 2020 06:18 CET | Update | https://www.mdpi.com/1999-4915/5/12/3213 |
| article html file updated | 7 May 2019 20:40 CEST | Update | N/A |
| article html file updated | 21 March 2019 09:43 CET | Update | N/A |
| article html file updated | 19 August 2015 14:16 CEST | Update | N/A |
| article html file updated | 28 April 2014 11:26 CEST | Original file | N/A |
| article xml file uploaded | 28 April 2014 11:26 CEST | Original file | https://www.mdpi.com/1999-4915/5/12/3213/xml |
| article pdf uploaded. | 18 December 2013 12:29 CET | Version of Record | https://www.mdpi.com/1999-4915/5/12/3213/pdf |
