| article html file updated | 6 February 2020 03:35 CET | Update | https://www.mdpi.com/2075-4450/4/3/425 |
| article html file updated | 8 May 2019 02:10 CEST | Update | - |
| article html file updated | 21 March 2019 02:22 CET | Update | - |
| article html file updated | 17 June 2015 11:59 CEST | Update | - |
| article html file updated | 27 January 2015 07:08 CET | Original file | - |
| article xml file uploaded | 27 January 2015 07:08 CET | Original file | https://www.mdpi.com/2075-4450/4/3/425/xml |
| article pdf uploaded. | 2 August 2013 11:16 CEST | Version of Record | https://www.mdpi.com/2075-4450/4/3/425/pdf |
