| article html file updated | 8 February 2020 01:24 CET | Update | https://www.mdpi.com/2071-1050/9/3/428 |
| article html file updated | 23 September 2019 19:29 CEST | Update | - |
| article html file updated | 4 May 2019 06:51 CEST | Update | - |
| article html file updated | 28 March 2017 06:13 CEST | Update | - |
| article html file updated | 16 March 2017 11:40 CET | Original file | - |
| article xml uploaded. | 16 March 2017 11:38 CET | Original file | https://www.mdpi.com/2071-1050/9/3/428/xml |
| article pdf uploaded. | 16 March 2017 11:38 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/3/428/pdf |
| article pdf uploaded. | 14 March 2017 16:43 CET | Version of Record | https://www.mdpi.com/2071-1050/9/3/428/pdf-vor |
