| article html file updated | 6 February 2020 08:35 CET | Update | https://www.mdpi.com/2073-4441/6/4/945 |
| article html file updated | 7 May 2019 15:56 CEST | Update | - |
| article html file updated | 21 March 2019 15:28 CET | Update | - |
| article html file updated | 20 August 2015 03:11 CEST | Update | - |
| article html file updated | 14 August 2014 12:06 CEST | Original file | - |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/2073-4441/6/4/945/xml |
| article pdf uploaded. | 23 April 2014 10:51 CEST | Updated version of record | https://www.mdpi.com/2073-4441/6/4/945/pdf |
| article pdf uploaded. | 17 April 2014 09:34 CEST | Updated version of record | https://www.mdpi.com/2073-4441/6/4/945/pdf-vor |
| article pdf uploaded. | 14 April 2014 14:59 CEST | Version of Record | https://www.mdpi.com/2073-4441/6/4/945/pdf-vor |
