| article html file updated | 7 February 2020 04:13 CET | Update | https://www.mdpi.com/2071-1050/8/2/141 |
| article html file updated | 6 May 2019 01:05 CEST | Update | N/A |
| article html file updated | 26 March 2019 19:59 CET | Original file | N/A |
| article pdf uploaded. | 3 February 2016 09:50 CET | Version of Record | https://www.mdpi.com/2071-1050/8/2/141/pdf |
| article xml uploaded. | 3 February 2016 09:50 CET | Original file | https://www.mdpi.com/2071-1050/8/2/141/xml |
