| article html file updated | 6 February 2020 03:17 CET | Update | https://www.mdpi.com/1999-4915/5/7/1815 |
| article html file updated | 8 May 2019 02:45 CEST | Update | - |
| article html file updated | 21 March 2019 01:30 CET | Update | - |
| article html file updated | 17 June 2015 11:26 CEST | Update | - |
| article html file updated | 9 August 2013 12:00 CEST | Original file | - |
| article xml file uploaded | 9 August 2013 12:00 CEST | Original file | https://www.mdpi.com/1999-4915/5/7/1815/xml |
| article supplementary file uploaded. | 8 August 2013 15:54 CEST | - | https://www.mdpi.com/1999-4915/5/7/1815#supplementary |
| article pdf uploaded. | 18 July 2013 17:06 CEST | Updated version of record | https://www.mdpi.com/1999-4915/5/7/1815/pdf |
| article pdf uploaded. | 18 July 2013 17:04 CEST | Updated version of record | - |
