| article html file updated | 8 February 2020 18:29 CET | Update | https://www.mdpi.com/2073-8994/9/10/227 |
| article html file updated | 2 May 2019 21:14 CEST | Update | N/A |
| article html file updated | 1 November 2017 04:44 CET | Update | N/A |
| article html file updated | 17 October 2017 04:20 CEST | Original file | N/A |
| article xml uploaded. | 17 October 2017 04:19 CEST | Original file | https://www.mdpi.com/2073-8994/9/10/227/xml |
| article pdf uploaded. | 17 October 2017 04:19 CEST | Updated version of record | https://www.mdpi.com/2073-8994/9/10/227/pdf |
| article pdf uploaded. | 14 October 2017 12:09 CEST | Version of Record | https://www.mdpi.com/2073-8994/9/10/227/pdf-vor |
