| article html file updated | 7 February 2020 07:49 CET | Update | https://www.mdpi.com/2076-0825/5/2/12 |
| article html file updated | 5 May 2019 17:32 CEST | Update | - |
| article html file updated | 27 March 2019 03:01 CET | Update | - |
| article html file updated | 27 June 2016 12:00 CEST | Update | - |
| article html file updated | 26 April 2016 13:57 CEST | Original file | - |
| article xml uploaded. | 26 April 2016 13:55 CEST | Original file | https://www.mdpi.com/2076-0825/5/2/12/xml |
| article pdf uploaded. | 26 April 2016 13:55 CEST | Version of Record | https://www.mdpi.com/2076-0825/5/2/12/pdf |
