| article html file updated | 7 February 2020 10:18 CET | Update | https://www.mdpi.com/2075-4418/6/2/26 |
| article html file updated | 5 May 2019 12:41 CEST | Update | - |
| article html file updated | 27 March 2019 07:44 CET | Update | - |
| article html file updated | 4 July 2016 10:33 CEST | Update | - |
| article html file updated | 17 June 2016 09:25 CEST | Original file | - |
| article xml uploaded. | 17 June 2016 09:24 CEST | Original file | https://www.mdpi.com/2075-4418/6/2/26/xml |
| article pdf uploaded. | 17 June 2016 09:24 CEST | Version of Record | https://www.mdpi.com/2075-4418/6/2/26/pdf |
