| article html file updated | 6 February 2020 10:01 CET | Update | https://www.mdpi.com/2073-4395/4/2/279 |
| article html file updated | 21 March 2019 19:03 CET | Update | - |
| article html file updated | 20 August 2015 10:10 CEST | Update | - |
| article html file updated | 12 September 2014 12:23 CEST | Original file | - |
| article xml file uploaded | 12 September 2014 12:23 CEST | Original file | https://www.mdpi.com/2073-4395/4/2/279/xml |
| article pdf uploaded. | 24 June 2014 11:09 CEST | Updated version of record | https://www.mdpi.com/2073-4395/4/2/279/pdf |
| article pdf uploaded. | 17 June 2014 15:52 CEST | Version of Record | https://www.mdpi.com/2073-4395/4/2/279/pdf-vor |
