| article html file updated | 6 February 2020 17:51 CET | Update | https://www.mdpi.com/2076-3425/5/2/130 |
| article html file updated | 6 May 2019 21:35 CEST | Update | - |
| article html file updated | 26 March 2019 01:00 CET | Update | - |
| article html file updated | 21 August 2015 10:50 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 | https://www.mdpi.com/2076-3425/5/2/130/xml |
| article pdf uploaded. | 21 April 2015 10:53 CEST | Version of Record | https://www.mdpi.com/2076-3425/5/2/130/pdf |
