| article html file updated | 8 February 2020 03:52 CET | Update | https://www.mdpi.com/2226-4310/4/2/24 |
| article html file updated | 24 September 2019 09:27 CEST | Update | - |
| article html file updated | 4 May 2019 01:41 CEST | Update | - |
| article html file updated | 28 June 2017 12:18 CEST | Update | - |
| article html file updated | 19 April 2017 10:05 CEST | Original file | - |
| article xml uploaded. | 19 April 2017 10:04 CEST | Original file | https://www.mdpi.com/2226-4310/4/2/24/xml |
| article pdf uploaded. | 19 April 2017 10:04 CEST | Version of Record | https://www.mdpi.com/2226-4310/4/2/24/pdf |
