| article html file updated | 6 February 2020 18:52 CET | Update | https://www.mdpi.com/2075-4434/3/2/84 |
| article html file updated | 6 May 2019 19:31 CEST | Update | N/A |
| article html file updated | 26 March 2019 03:09 CET | Update | N/A |
| article html file updated | 5 November 2015 08:20 CET | Original file | N/A |
| article xml file uploaded | 5 November 2015 08:20 CET | Original file | https://www.mdpi.com/2075-4434/3/2/84/xml |
| article pdf uploaded. | 21 May 2015 15:30 CEST | Version of Record | https://www.mdpi.com/2075-4434/3/2/84/pdf |
