| article html file updated | 6 February 2020 10:42 CET | Update | https://www.mdpi.com/2218-2004/2/3/319 |
| article html file updated | 21 March 2019 20:51 CET | Update | N/A |
| article html file updated | 20 August 2015 12:44 CEST | Update | N/A |
| article html file updated | 12 September 2014 12:23 CEST | Original file | N/A |
| article xml file uploaded | 12 September 2014 12:23 CEST | Original file | https://www.mdpi.com/2218-2004/2/3/319/xml |
| article pdf uploaded. | 24 July 2014 14:11 CEST | Updated version of record | https://www.mdpi.com/2218-2004/2/3/319/pdf |
| article pdf uploaded. | 14 July 2014 16:52 CEST | Version of Record | https://www.mdpi.com/2218-2004/2/3/319/pdf-vor |
