| article html file updated | 6 February 2020 06:04 CET | Update | https://www.mdpi.com/1999-4915/5/12/3109 |
| article html file updated | 7 May 2019 21:06 CEST | Update | N/A |
| article html file updated | 21 March 2019 09:04 CET | Update | N/A |
| article html file updated | 19 August 2015 13:03 CEST | Update | N/A |
| article html file updated | 28 April 2014 11:25 CEST | Original file | N/A |
| article xml file uploaded | 28 April 2014 11:25 CEST | Original file | https://www.mdpi.com/1999-4915/5/12/3109/xml |
| article pdf uploaded. | 10 December 2013 10:41 CET | Version of Record | https://www.mdpi.com/1999-4915/5/12/3109/pdf |
