| article html file updated | 26 September 2022 10:55 CEST | Original file | https://www.mdpi.com/2504-3900/1/9/873 |
| article pdf uploaded. | 4 April 2018 03:34 CEST | Updated version of record | https://www.mdpi.com/2504-3900/1/9/873/pdf |
| article pdf uploaded. | 24 November 2017 04:23 CET | Version of Record | https://www.mdpi.com/2504-3900/1/9/873/pdf-vor |
