| article html file updated | 8 February 2020 06:08 CET | Update | https://www.mdpi.com/2076-3921/6/2/35 |
| article html file updated | 24 September 2019 21:22 CEST | Update | - |
| article html file updated | 3 May 2019 21:30 CEST | Update | - |
| article html file updated | 28 June 2017 12:29 CEST | Update | - |
| article html file updated | 22 May 2017 04:35 CEST | Update | - |
| article html file updated | 18 May 2017 11:00 CEST | Original file | - |
| article xml uploaded. | 18 May 2017 10:59 CEST | Original file | https://www.mdpi.com/2076-3921/6/2/35/xml |
| article pdf uploaded. | 18 May 2017 10:59 CEST | Version of Record | https://www.mdpi.com/2076-3921/6/2/35/pdf |
