| article html file updated | 6 February 2020 08:13 CET | Update | https://www.mdpi.com/2073-4395/4/2/178 |
| article html file updated | 21 March 2019 14:38 CET | Update | N/A |
| article html file updated | 20 August 2015 01:25 CEST | Update | N/A |
| article html file updated | 24 June 2014 12:01 CEST | Original file | N/A |
| article xml file uploaded | 24 June 2014 12:01 CEST | Original file | https://www.mdpi.com/2073-4395/4/2/178/xml |
| article pdf uploaded. | 1 April 2014 11:37 CEST | Updated version of record | https://www.mdpi.com/2073-4395/4/2/178/pdf |
| article pdf uploaded. | 27 March 2014 14:04 CET | Version of Record | https://www.mdpi.com/2073-4395/4/2/178/pdf-vor |
