| article html file updated | 8 February 2020 04:27 CET | Update | https://www.mdpi.com/2076-3905/6/2/8 |
| article html file updated | 4 May 2019 00:37 CEST | Update | - |
| article html file updated | 28 June 2017 14:06 CEST | Update | - |
| article html file updated | 27 April 2017 08:54 CEST | Original file | - |
| article xml uploaded. | 27 April 2017 08:52 CEST | Original file | https://www.mdpi.com/2076-3905/6/2/8/xml |
| article pdf uploaded. | 27 April 2017 08:52 CEST | Version of Record | https://www.mdpi.com/2076-3905/6/2/8/pdf |
