| article html file updated | 26 September 2022 11:07 CEST | Original file | https://www.mdpi.com/2504-3900/2/1/78 |
| article pdf uploaded. | 22 February 2018 09:54 CET | Updated version of record | https://www.mdpi.com/2504-3900/2/1/78/pdf |
| article pdf uploaded. | 9 January 2018 11:37 CET | Version of Record | https://www.mdpi.com/2504-3900/2/1/78/pdf-vor |
