| article html file updated | 8 February 2020 07:08 CET | Update | https://www.mdpi.com/2076-0817/6/2/22 |
| article html file updated | 25 September 2019 02:35 CEST | Update | - |
| article html file updated | 3 May 2019 19:36 CEST | Update | - |
| article html file updated | 29 June 2017 12:39 CEST | Update | - |
| article html file updated | 1 June 2017 07:51 CEST | Original file | - |
| article xml uploaded. | 1 June 2017 07:50 CEST | Update | https://www.mdpi.com/2076-0817/6/2/22/xml |
| article pdf uploaded. | 1 June 2017 07:50 CEST | Updated version of record | https://www.mdpi.com/2076-0817/6/2/22/pdf |
| article pdf uploaded. | 31 May 2017 16:08 CEST | Version of Record | https://www.mdpi.com/2076-0817/6/2/22/pdf-vor |
