| article html file updated | 8 February 2020 02:55 CET | Update | https://www.mdpi.com/2075-1729/7/2/14 |
| article html file updated | 24 September 2019 04:02 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:35 CEST | Update | N/A |
| article html file updated | 30 June 2017 05:45 CEST | Update | N/A |
| article html file updated | 5 April 2017 09:44 CEST | Original file | N/A |
| article xml uploaded. | 5 April 2017 09:43 CEST | Original file | https://www.mdpi.com/2075-1729/7/2/14/xml |
| article pdf uploaded. | 5 April 2017 09:43 CEST | Version of Record | https://www.mdpi.com/2075-1729/7/2/14/pdf |
