| article html file updated | 8 February 2020 02:32 CET | Update | https://www.mdpi.com/2071-1050/9/4/526 |
| article html file updated | 24 September 2019 01:54 CEST | Update | - |
| article html file updated | 4 May 2019 04:24 CEST | Update | - |
| article html file updated | 28 April 2017 10:49 CEST | Update | - |
| article html file updated | 31 March 2017 12:29 CEST | Original file | - |
| article xml uploaded. | 31 March 2017 12:28 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/526/xml |
| article pdf uploaded. | 31 March 2017 12:28 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/526/pdf |
| article pdf uploaded. | 30 March 2017 09:42 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/526/pdf-vor |
