| article html file updated | 6 February 2020 03:12 CET | Update | https://www.mdpi.com/1999-4915/5/7/1740 |
| article html file updated | 8 May 2019 02:53 CEST | Update | N/A |
| article html file updated | 21 March 2019 01:17 CET | Update | N/A |
| article html file updated | 17 June 2015 11:20 CEST | Update | N/A |
| article html file updated | 9 August 2013 12:00 CEST | Original file | N/A |
| article xml file uploaded | 9 August 2013 12:00 CEST | Original file | https://www.mdpi.com/1999-4915/5/7/1740/xml |
| article pdf uploaded. | 15 July 2013 14:47 CEST | Version of Record | https://www.mdpi.com/1999-4915/5/7/1740/pdf |
