| article html file updated | 8 February 2020 14:28 CET | Update | https://www.mdpi.com/2308-3417/2/3/28 |
| article html file updated | 3 May 2019 05:09 CEST | Update | - |
| article html file updated | 25 August 2017 14:18 CEST | Original file | - |
| article xml uploaded. | 25 August 2017 14:17 CEST | Original file | https://www.mdpi.com/2308-3417/2/3/28/xml |
| article pdf uploaded. | 25 August 2017 14:17 CEST | Updated version of record | https://www.mdpi.com/2308-3417/2/3/28/pdf |
| article pdf uploaded. | 25 August 2017 12:18 CEST | Version of Record | https://www.mdpi.com/2308-3417/2/3/28/pdf-vor |
