| article html file updated | 6 February 2020 07:05 CET | Update | https://www.mdpi.com/2304-6740/2/1/16 |
| article html file updated | 7 May 2019 19:01 CEST | Update | - |
| article html file updated | 21 March 2019 11:54 CET | Update | - |
| article html file updated | 19 August 2015 19:26 CEST | Update | - |
| article html file updated | 24 June 2014 12:12 CEST | Original file | - |
| article xml file uploaded | 24 June 2014 12:12 CEST | Original file | https://www.mdpi.com/2304-6740/2/1/16/xml |
| article pdf uploaded. | 29 January 2014 14:22 CET | Version of Record | https://www.mdpi.com/2304-6740/2/1/16/pdf |
