| article html file updated | 8 February 2020 07:30 CET | Update | https://www.mdpi.com/2075-1729/7/2/24 |
| article html file updated | 3 May 2019 18:55 CEST | Update | N/A |
| article html file updated | 30 June 2017 05:47 CEST | Update | N/A |
| article html file updated | 6 June 2017 07:53 CEST | Original file | N/A |
| article xml uploaded. | 6 June 2017 07:52 CEST | Original file | https://www.mdpi.com/2075-1729/7/2/24/xml |
| article pdf uploaded. | 6 June 2017 07:52 CEST | Updated version of record | https://www.mdpi.com/2075-1729/7/2/24/pdf |
| article pdf uploaded. | 5 June 2017 11:42 CEST | Version of Record | https://www.mdpi.com/2075-1729/7/2/24/pdf-vor |
