| article html file updated | 6 February 2020 09:28 CET | Update | https://www.mdpi.com/1999-4915/6/5/2155 |
| article html file updated | 7 May 2019 14:07 CEST | Update | N/A |
| article html file updated | 21 March 2019 17:34 CET | Update | N/A |
| article html file updated | 20 August 2015 08:08 CEST | Update | N/A |
| article html file updated | 5 June 2014 08:50 CEST | Original file | N/A |
| article xml file uploaded | 5 June 2014 08:50 CEST | Original file | https://www.mdpi.com/1999-4915/6/5/2155/xml |
| article pdf uploaded. | 26 May 2014 09:11 CEST | Updated version of record | https://www.mdpi.com/1999-4915/6/5/2155/pdf |
| article pdf uploaded. | 23 May 2014 13:50 CEST | Version of Record | https://www.mdpi.com/1999-4915/6/5/2155/pdf-vor |
