| article html file updated | 6 February 2020 01:50 CET | Update | https://www.mdpi.com/2076-3425/3/2/704 |
| article html file updated | 8 May 2019 05:41 CEST | Update | - |
| article html file updated | 20 March 2019 21:52 CET | Update | - |
| article html file updated | 17 June 2015 08:55 CEST | Update | - |
| article html file updated | 20 May 2014 08:37 CEST | Original file | - |
| article xml file uploaded | 20 May 2014 08:37 CEST | Original file | https://www.mdpi.com/2076-3425/3/2/704/xml |
| article pdf uploaded. | 29 April 2013 13:50 CEST | Version of Record | https://www.mdpi.com/2076-3425/3/2/704/pdf |
