| article html file updated | 8 February 2020 08:10 CET | Update | https://www.mdpi.com/2079-9284/4/2/19 |
| article html file updated | 25 September 2019 07:43 CEST | Update | - |
| article html file updated | 3 May 2019 17:42 CEST | Update | - |
| article html file updated | 13 June 2017 11:08 CEST | Original file | - |
| article xml uploaded. | 13 June 2017 11:06 CEST | Original file | https://www.mdpi.com/2079-9284/4/2/19/xml |
| article pdf uploaded. | 13 June 2017 11:06 CEST | Version of Record | https://www.mdpi.com/2079-9284/4/2/19/pdf |
