| article html file updated | 6 February 2020 21:11 CET | Update | https://www.mdpi.com/2079-9292/4/3/507 |
| article html file updated | 6 May 2019 14:43 CEST | Update | - |
| article html file updated | 26 March 2019 07:38 CET | Update | - |
| article html file updated | 15 October 2015 07:24 CEST | Update | - |
| article xml file uploaded | 15 October 2015 07:24 CEST | Original file | https://www.mdpi.com/2079-9292/4/3/507/xml |
| article html file updated | 21 August 2015 15:17 CEST | Original file | - |
| article pdf uploaded. | 29 July 2015 14:00 CEST | Version of Record | https://www.mdpi.com/2079-9292/4/3/507/pdf |
