| article html file updated | 7 February 2020 11:13 CET | Update | https://www.mdpi.com/2076-3905/5/3/18 |
| article html file updated | 5 May 2019 11:00 CEST | Update | - |
| article html file updated | 27 March 2019 09:23 CET | Update | - |
| article html file updated | 29 September 2016 12:16 CEST | Update | - |
| article html file updated | 5 July 2016 14:08 CEST | Original file | - |
| article xml uploaded. | 5 July 2016 14:07 CEST | Original file | https://www.mdpi.com/2076-3905/5/3/18/xml |
| article pdf uploaded. | 5 July 2016 14:07 CEST | Version of Record | https://www.mdpi.com/2076-3905/5/3/18/pdf |
