| article html file updated | 26 September 2022 12:50 CEST | Original file | https://www.mdpi.com/2504-3900/2/4/196 |
| article pdf uploaded. | 26 January 2018 02:14 CET | Updated version of record | https://www.mdpi.com/2504-3900/2/4/196/pdf |
| article pdf uploaded. | 24 January 2018 12:49 CET | Version of Record | https://www.mdpi.com/2504-3900/2/4/196/pdf-vor |
