| article html file updated | 6 February 2020 18:43 CET | Update | https://www.mdpi.com/2218-2004/3/2/86 |
| article html file updated | 6 May 2019 19:51 CEST | Update | N/A |
| article html file updated | 26 March 2019 02:49 CET | Update | N/A |
| article html file updated | 21 August 2015 12:16 CEST | Update | N/A |
| article html file updated | 10 July 2015 05:50 CEST | Original file | N/A |
| article xml file uploaded | 10 July 2015 05:50 CEST | Original file | https://www.mdpi.com/2218-2004/3/2/86/xml |
| article pdf uploaded. | 18 May 2015 13:25 CEST | Version of Record | https://www.mdpi.com/2218-2004/3/2/86/pdf |
