| article html file updated | 8 February 2020 05:49 CET | Update | https://www.mdpi.com/2076-0760/6/2/48 |
| article html file updated | 3 May 2019 22:08 CEST | Update | - |
| article html file updated | 23 May 2017 04:12 CEST | Update | - |
| article html file updated | 16 May 2017 11:14 CEST | Update | - |
| article xml uploaded. | 16 May 2017 11:12 CEST | Update | https://www.mdpi.com/2076-0760/6/2/48/xml |
| article pdf uploaded. | 16 May 2017 11:12 CEST | Updated version of record | https://www.mdpi.com/2076-0760/6/2/48/pdf |
| article html file updated | 13 May 2017 11:47 CEST | Original file | - |
| article pdf uploaded. | 13 May 2017 11:46 CEST | Version of Record | https://www.mdpi.com/2076-0760/6/2/48/pdf-vor |
