| article html file updated | 6 February 2020 12:38 CET | Update | https://www.mdpi.com/2073-4360/6/10/2552 |
| article html file updated | 7 May 2019 07:31 CEST | Update | - |
| article html file updated | 22 March 2019 02:01 CET | Update | - |
| article html file updated | 20 August 2015 21:59 CEST | Update | - |
| article html file updated | 20 October 2014 11:41 CEST | Update | - |
| article xml file uploaded | 20 October 2014 11:41 CEST | Update | https://www.mdpi.com/2073-4360/6/10/2552/xml |
| article html file updated | 14 October 2014 12:07 CEST | Original file | - |
| article xml file uploaded | 14 October 2014 12:07 CEST | Original file | - |
| article pdf uploaded. | 14 October 2014 08:49 CEST | Updated version of record | https://www.mdpi.com/2073-4360/6/10/2552/pdf |
| article supplementary file uploaded. | 30 September 2014 13:48 CEST | - | https://www.mdpi.com/2073-4360/6/10/2552#supplementary |
| article pdf uploaded. | 30 September 2014 13:48 CEST | Version of Record | https://www.mdpi.com/2073-4360/6/10/2552/pdf-vor |
