| article html file updated | 7 February 2020 07:27 CET | Update | https://www.mdpi.com/2079-9284/3/2/16 |
| article html file updated | 5 May 2019 18:16 CEST | Update | - |
| article html file updated | 27 March 2019 02:15 CET | Update | - |
| article html file updated | 19 April 2016 09:36 CEST | Original file | - |
| article xml uploaded. | 19 April 2016 09:35 CEST | Original file | https://www.mdpi.com/2079-9284/3/2/16/xml |
| article pdf uploaded. | 19 April 2016 09:35 CEST | Version of Record | https://www.mdpi.com/2079-9284/3/2/16/pdf |
