| article html file updated | 6 February 2020 20:57 CET | Update | https://www.mdpi.com/2075-4450/6/3/658 |
| article html file updated | 6 May 2019 15:10 CEST | Update | - |
| article html file updated | 26 March 2019 07:12 CET | Update | - |
| article html file updated | 9 October 2015 06:22 CEST | Update | - |
| article xml file uploaded | 9 October 2015 06:22 CEST | Original file | https://www.mdpi.com/2075-4450/6/3/658/xml |
| article html file updated | 21 August 2015 15:11 CEST | Original file | - |
| article pdf uploaded. | 23 July 2015 10:16 CEST | Version of Record | https://www.mdpi.com/2075-4450/6/3/658/pdf |
