| article html file updated | 6 February 2020 17:28 CET | Update | https://www.mdpi.com/2223-7747/4/2/183 |
| article html file updated | 6 May 2019 22:19 CEST | Update | N/A |
| article html file updated | 26 March 2019 00:20 CET | Update | N/A |
| article html file updated | 12 October 2015 10:32 CEST | Update | N/A |
| article xml file uploaded | 12 October 2015 10:32 CEST | Original file | https://www.mdpi.com/2223-7747/4/2/183/xml |
| article html file updated | 21 August 2015 10:12 CEST | Original file | N/A |
| article pdf uploaded. | 9 April 2015 16:23 CEST | Version of Record | https://www.mdpi.com/2223-7747/4/2/183/pdf |
