| article html file updated | 8 February 2020 00:11 CET | Update | https://www.mdpi.com/2079-4991/7/3/52 |
| article html file updated | 23 September 2019 12:24 CEST | Update | - |
| article html file updated | 4 May 2019 09:36 CEST | Update | - |
| article html file updated | 30 March 2017 11:56 CEST | Update | - |
| article html file updated | 24 February 2017 11:10 CET | Original file | - |
| article xml uploaded. | 24 February 2017 11:08 CET | Original file | https://www.mdpi.com/2079-4991/7/3/52/xml |
| article pdf uploaded. | 24 February 2017 11:08 CET | Version of Record | https://www.mdpi.com/2079-4991/7/3/52/pdf |
