| article html file updated | 8 February 2020 23:30 CET | Update | https://www.mdpi.com/2075-4663/5/4/93 |
| article html file updated | 2 May 2019 09:51 CEST | Update | - |
| article html file updated | 18 April 2019 07:31 CEST | Update | - |
| article html file updated | 2 January 2018 10:59 CET | Update | - |
| article html file updated | 8 December 2017 11:08 CET | Original file | - |
| article xml uploaded. | 8 December 2017 11:07 CET | Original file | https://www.mdpi.com/2075-4663/5/4/93/xml |
| article pdf uploaded. | 8 December 2017 11:07 CET | Version of Record | https://www.mdpi.com/2075-4663/5/4/93/pdf |
