| article html file updated | 7 February 2020 12:33 CET | Update | https://www.mdpi.com/2076-3271/4/3/11 |
| article html file updated | 21 September 2019 22:00 CEST | Update | - |
| article html file updated | 5 May 2019 08:35 CEST | Update | - |
| article html file updated | 27 March 2019 11:52 CET | Update | - |
| article html file updated | 29 July 2016 11:32 CEST | Original file | - |
| article xml uploaded. | 29 July 2016 11:31 CEST | Original file | https://www.mdpi.com/2076-3271/4/3/11/xml |
| article pdf uploaded. | 29 July 2016 11:31 CEST | Version of Record | https://www.mdpi.com/2076-3271/4/3/11/pdf |
