| article html file updated | 8 February 2020 07:12 CET | Update | https://www.mdpi.com/2071-1050/9/6/926 |
| article html file updated | 25 September 2019 02:52 CEST | Update | - |
| article html file updated | 3 May 2019 19:29 CEST | Update | - |
| article html file updated | 28 June 2017 14:36 CEST | Update | - |
| article html file updated | 2 June 2017 04:43 CEST | Original file | - |
| article xml uploaded. | 2 June 2017 04:27 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/926/xml |
| article pdf uploaded. | 2 June 2017 04:27 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/926/pdf |
| article pdf uploaded. | 1 June 2017 11:57 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/926/pdf-vor |
