| article html file updated | 7 February 2020 09:42 CET | Update | https://www.mdpi.com/2075-4450/7/2/22 |
| article html file updated | 5 May 2019 13:48 CEST | Update | - |
| article html file updated | 27 March 2019 06:36 CET | Update | - |
| article html file updated | 4 July 2016 10:36 CEST | Update | - |
| article html file updated | 3 June 2016 14:14 CEST | Original file | - |
| article xml uploaded. | 3 June 2016 14:12 CEST | Original file | https://www.mdpi.com/2075-4450/7/2/22/xml |
| article pdf uploaded. | 3 June 2016 14:12 CEST | Version of Record | https://www.mdpi.com/2075-4450/7/2/22/pdf |
