| article html file updated | 8 February 2020 01:14 CET | Update | https://www.mdpi.com/2071-1050/9/3/417 |
| article html file updated | 4 May 2019 07:12 CEST | Update | - |
| article html file updated | 28 March 2017 06:12 CEST | Update | - |
| article html file updated | 13 March 2017 07:20 CET | Original file | - |
| article xml uploaded. | 13 March 2017 07:19 CET | Original file | https://www.mdpi.com/2071-1050/9/3/417/xml |
| article pdf uploaded. | 13 March 2017 07:19 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/3/417/pdf |
| article pdf uploaded. | 10 March 2017 14:20 CET | Version of Record | https://www.mdpi.com/2071-1050/9/3/417/pdf-vor |
