| article html file updated | 8 February 2020 16:25 CET | Update | https://www.mdpi.com/2218-1989/7/3/48 |
| article html file updated | 3 May 2019 01:35 CEST | Update | - |
| article html file updated | 30 September 2017 11:36 CEST | Update | - |
| article html file updated | 18 September 2017 04:21 CEST | Original file | - |
| article xml uploaded. | 18 September 2017 04:19 CEST | Original file | https://www.mdpi.com/2218-1989/7/3/48/xml |
| article pdf uploaded. | 18 September 2017 04:19 CEST | Updated version of record | https://www.mdpi.com/2218-1989/7/3/48/pdf |
| article pdf uploaded. | 18 September 2017 04:15 CEST | Updated version of record | https://www.mdpi.com/2218-1989/7/3/48/pdf-vor |
| article pdf uploaded. | 16 September 2017 12:57 CEST | Version of Record | https://www.mdpi.com/2218-1989/7/3/48/pdf-vor |
