| article html file updated | 6 February 2020 08:16 CET | Update | https://www.mdpi.com/2079-7737/3/2/264 |
| article html file updated | 7 May 2019 16:35 CEST | Update | N/A |
| article html file updated | 21 March 2019 14:45 CET | Update | N/A |
| article html file updated | 20 August 2015 01:44 CEST | Update | N/A |
| article html file updated | 8 July 2014 09:51 CEST | Original file | N/A |
| article xml file uploaded | 8 July 2014 09:51 CEST | Original file | https://www.mdpi.com/2079-7737/3/2/264/xml |
| article pdf uploaded. | 31 March 2014 11:34 CEST | Version of Record | https://www.mdpi.com/2079-7737/3/2/264/pdf |
