| article html file updated | 6 February 2020 19:40 CET | Update | https://www.mdpi.com/2076-0817/4/2/387 |
| article html file updated | 20 September 2019 22:49 CEST | Update | - |
| article html file updated | 6 May 2019 17:48 CEST | Update | - |
| article html file updated | 26 March 2019 04:44 CET | Update | - |
| article html file updated | 8 September 2015 06:05 CEST | Update | - |
| article xml file uploaded | 8 September 2015 06:05 CEST | Update | https://www.mdpi.com/2076-0817/4/2/387/xml |
| article html file updated | 21 August 2015 13:37 CEST | Update | - |
| article html file updated | 7 July 2015 10:59 CEST | Original file | - |
| article xml file uploaded | 7 July 2015 10:59 CEST | Original file | - |
| article pdf uploaded. | 15 June 2015 10:27 CEST | Version of Record | https://www.mdpi.com/2076-0817/4/2/387/pdf |
