| article html file updated | 7 February 2020 09:36 CET | Update | https://www.mdpi.com/2076-3921/5/2/17 |
| article html file updated | 5 May 2019 14:01 CEST | Update | - |
| article html file updated | 27 March 2019 06:22 CET | Update | - |
| article html file updated | 4 July 2016 06:23 CEST | Update | - |
| article html file updated | 1 June 2016 11:55 CEST | Original file | - |
| article xml uploaded. | 1 June 2016 11:54 CEST | Original file | https://www.mdpi.com/2076-3921/5/2/17/xml |
| article pdf uploaded. | 1 June 2016 11:54 CEST | Version of Record | https://www.mdpi.com/2076-3921/5/2/17/pdf |
