| article html file updated | 7 February 2020 07:59 CET | Update | https://www.mdpi.com/2079-9284/3/2/17 |
| article html file updated | 21 September 2019 16:13 CEST | Update | - |
| article html file updated | 5 May 2019 17:10 CEST | Update | - |
| article html file updated | 27 March 2019 03:22 CET | Update | - |
| article html file updated | 29 April 2016 10:06 CEST | Original file | - |
| article xml uploaded. | 29 April 2016 09:55 CEST | Original file | https://www.mdpi.com/2079-9284/3/2/17/xml |
| article pdf uploaded. | 29 April 2016 09:55 CEST | Version of Record | https://www.mdpi.com/2079-9284/3/2/17/pdf |
