| article html file updated | 7 February 2020 10:00 CET | Update | https://www.mdpi.com/2075-4450/7/2/24 |
| article html file updated | 5 May 2019 13:16 CEST | Update | - |
| article html file updated | 27 March 2019 07:11 CET | Update | - |
| article html file updated | 4 July 2016 10:36 CEST | Update | - |
| article html file updated | 9 June 2016 13:05 CEST | Original file | - |
| article xml uploaded. | 9 June 2016 13:04 CEST | Original file | https://www.mdpi.com/2075-4450/7/2/24/xml |
| article pdf uploaded. | 9 June 2016 13:04 CEST | Version of Record | https://www.mdpi.com/2075-4450/7/2/24/pdf |
