| article html file updated | 7 February 2020 13:51 CET | Update | https://www.mdpi.com/2223-7747/5/3/34 |
| article html file updated | 5 May 2019 06:09 CEST | Update | - |
| article html file updated | 27 March 2019 14:43 CET | Update | - |
| article html file updated | 28 September 2016 11:49 CEST | Update | - |
| article html file updated | 25 August 2016 08:26 CEST | Original file | - |
| article xml uploaded. | 25 August 2016 08:25 CEST | Original file | https://www.mdpi.com/2223-7747/5/3/34/xml |
| article pdf uploaded. | 25 August 2016 08:25 CEST | Version of Record | https://www.mdpi.com/2223-7747/5/3/34/pdf |
