| article html file updated | 6 February 2020 22:22 CET | Update | https://www.mdpi.com/2223-7747/4/3/644 |
| article html file updated | 6 May 2019 12:14 CEST | Update | N/A |
| article html file updated | 26 March 2019 09:54 CET | Update | N/A |
| article html file updated | 12 October 2015 10:32 CEST | Original file | N/A |
| article xml file uploaded | 12 October 2015 10:32 CEST | Original file | https://www.mdpi.com/2223-7747/4/3/644/xml |
| article supplementary file uploaded. | 1 September 2015 15:54 CEST | - | https://www.mdpi.com/2223-7747/4/3/644#supplementary |
| article pdf uploaded. | 1 September 2015 15:54 CEST | Version of Record | https://www.mdpi.com/2223-7747/4/3/644/pdf |
