| article html file updated | 26 September 2022 14:06 CEST | Original file | https://www.mdpi.com/2504-3900/2/6/302 |
| article pdf uploaded. | 23 March 2018 04:49 CET | Updated version of record | https://www.mdpi.com/2504-3900/2/6/302/pdf |
| article pdf uploaded. | 12 February 2018 09:17 CET | Version of Record | https://www.mdpi.com/2504-3900/2/6/302/pdf-vor |
