| article html file updated | 7 February 2020 12:35 CET | Update | https://www.mdpi.com/2076-0752/5/3/6 |
| article html file updated | 5 May 2019 08:30 CEST | Update | - |
| article html file updated | 27 March 2019 11:56 CET | Update | - |
| article html file updated | 29 September 2016 10:01 CEST | Update | - |
| article html file updated | 1 August 2016 11:25 CEST | Original file | - |
| article xml uploaded. | 1 August 2016 11:24 CEST | Update | https://www.mdpi.com/2076-0752/5/3/6/xml |
| article pdf uploaded. | 1 August 2016 11:24 CEST | Version of Record | https://www.mdpi.com/2076-0752/5/3/6/pdf |
