| article html file updated | 7 February 2020 06:54 CET | Update | https://www.mdpi.com/2071-1050/8/4/334 |
| article html file updated | 5 May 2019 19:27 CEST | Update | - |
| article html file updated | 27 March 2019 01:09 CET | Update | - |
| article html file updated | 29 April 2016 05:49 CEST | Update | - |
| article html file updated | 6 April 2016 12:43 CEST | Original file | - |
| article xml uploaded. | 6 April 2016 12:42 CEST | Original file | https://www.mdpi.com/2071-1050/8/4/334/xml |
| article pdf uploaded. | 6 April 2016 12:42 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/4/334/pdf |
