| article html file updated | 7 February 2020 07:19 CET | Update | https://www.mdpi.com/2071-1050/8/4/368 |
| article html file updated | 5 May 2019 18:32 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:59 CET | Update | N/A |
| article html file updated | 29 April 2016 06:00 CEST | Update | N/A |
| article html file updated | 15 April 2016 10:47 CEST | Original file | N/A |
| article xml uploaded. | 15 April 2016 10:46 CEST | Original file | https://www.mdpi.com/2071-1050/8/4/368/xml |
| article pdf uploaded. | 15 April 2016 10:46 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/4/368/pdf |
