| article html file updated | 6 February 2020 18:15 CET | Update | https://www.mdpi.com/2218-2004/3/2/76 |
| article html file updated | 6 May 2019 20:46 CEST | Update | - |
| article html file updated | 26 March 2019 01:50 CET | Update | - |
| article html file updated | 21 August 2015 11:31 CEST | Update | - |
| article html file updated | 10 July 2015 05:50 CEST | Original file | - |
| article xml file uploaded | 10 July 2015 05:50 CEST | Original file | https://www.mdpi.com/2218-2004/3/2/76/xml |
| article pdf uploaded. | 30 April 2015 15:53 CEST | Version of Record | https://www.mdpi.com/2218-2004/3/2/76/pdf |
