| article html file updated | 6 February 2020 09:09 CET | Update | https://www.mdpi.com/2076-0817/3/2/417 |
| article html file updated | 7 May 2019 14:44 CEST | Update | - |
| article html file updated | 21 March 2019 16:50 CET | Update | - |
| article html file updated | 20 August 2015 06:24 CEST | Update | - |
| article html file updated | 26 August 2014 04:23 CEST | Original file | - |
| article xml file uploaded | 26 August 2014 04:23 CEST | Original file | https://www.mdpi.com/2076-0817/3/2/417/xml |
| article supplementary file uploaded. | 9 May 2014 14:50 CEST | - | https://www.mdpi.com/2076-0817/3/2/417#supplementary |
| article pdf uploaded. | 9 May 2014 14:50 CEST | Version of Record | https://www.mdpi.com/2076-0817/3/2/417/pdf |
