| article html file updated | 6 February 2020 20:19 CET | Update | https://www.mdpi.com/2223-7747/4/3/369 |
| article html file updated | 6 May 2019 16:28 CEST | Update | - |
| article html file updated | 26 March 2019 05:55 CET | Update | - |
| article html file updated | 12 October 2015 10:32 CEST | Update | - |
| article xml file uploaded | 12 October 2015 10:32 CEST | Original file | https://www.mdpi.com/2223-7747/4/3/369/xml |
| article html file updated | 21 August 2015 14:28 CEST | Original file | - |
| article pdf uploaded. | 3 July 2015 12:52 CEST | Version of Record | https://www.mdpi.com/2223-7747/4/3/369/pdf |
