| article html file updated | 7 February 2020 14:01 CET | Update | https://www.mdpi.com/2227-9717/4/3/28 |
| article html file updated | 5 May 2019 05:51 CEST | Update | - |
| article html file updated | 27 March 2019 15:05 CET | Update | - |
| article html file updated | 28 September 2016 22:57 CEST | Update | - |
| article html file updated | 29 August 2016 10:38 CEST | Original file | - |
| article xml uploaded. | 29 August 2016 10:36 CEST | Original file | https://www.mdpi.com/2227-9717/4/3/28/xml |
| article pdf uploaded. | 29 August 2016 10:36 CEST | Version of Record | https://www.mdpi.com/2227-9717/4/3/28/pdf |
