| article html file updated | 8 February 2020 03:40 CET | Update | https://www.mdpi.com/2071-1050/9/4/618 |
| article html file updated | 24 September 2019 08:16 CEST | Update | - |
| article html file updated | 4 May 2019 02:03 CEST | Update | - |
| article html file updated | 28 April 2017 11:05 CEST | Update | - |
| article html file updated | 17 April 2017 13:07 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 13:06 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/618/xml |
| article pdf uploaded. | 17 April 2017 13:06 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/618/pdf |
| article pdf uploaded. | 15 April 2017 08:56 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/618/pdf-vor |
| article pdf uploaded. | 15 April 2017 08:41 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/618/pdf-vor |
