| article html file updated | 14 February 2020 11:36 CET | Update | https://www.mdpi.com/2409-9279/2/4/87 |
| article html file updated | 1 January 2020 04:15 CET | Update | - |
| article html file updated | 14 December 2019 02:37 CET | Original file | - |
| article pdf uploaded. | 14 December 2019 02:35 CET | Updated version of record | https://www.mdpi.com/2409-9279/2/4/87/pdf |
| article xml uploaded. | 14 December 2019 02:35 CET | Update | https://www.mdpi.com/2409-9279/2/4/87/xml |
| article xml file uploaded | 14 December 2019 02:35 CET | Update | - |
| article pdf uploaded. | 21 November 2019 03:19 CET | Version of Record | https://www.mdpi.com/2409-9279/2/4/87/pdf-vor |
| article xml file uploaded | 21 November 2019 03:19 CET | Original file | - |
