| article html file updated | 7 February 2020 07:38 CET | Update | https://www.mdpi.com/1999-4915/8/4/115 |
| article html file updated | 5 May 2019 17:54 CEST | Update | - |
| article html file updated | 27 March 2019 02:38 CET | Update | - |
| article html file updated | 28 April 2016 12:12 CEST | Update | - |
| article html file updated | 21 April 2016 15:24 CEST | Original file | - |
| article xml uploaded. | 21 April 2016 15:23 CEST | Original file | https://www.mdpi.com/1999-4915/8/4/115/xml |
| article pdf uploaded. | 21 April 2016 15:23 CEST | Version of Record | https://www.mdpi.com/1999-4915/8/4/115/pdf |
