| article html file updated | 6 February 2020 20:18 CET | Update | https://www.mdpi.com/2073-431X/4/3/176 |
| article html file updated | 6 May 2019 16:32 CEST | Update | - |
| article html file updated | 26 March 2019 05:52 CET | Update | - |
| article html file updated | 14 October 2015 11:14 CEST | Update | - |
| article xml file uploaded | 14 October 2015 11:14 CEST | Original file | https://www.mdpi.com/2073-431X/4/3/176/xml |
| article html file updated | 21 August 2015 14:24 CEST | Original file | - |
| article pdf uploaded. | 2 July 2015 13:55 CEST | Version of Record | https://www.mdpi.com/2073-431X/4/3/176/pdf |
