| article html file updated | 6 February 2020 18:04 CET | Update | https://www.mdpi.com/1996-1073/8/5/3503 |
| article html file updated | 20 September 2019 20:40 CEST | Update | - |
| article html file updated | 6 May 2019 21:08 CEST | Update | - |
| article html file updated | 26 March 2019 01:28 CET | Update | - |
| article html file updated | 21 August 2015 11:14 CEST | Original file | - |
| article pdf uploaded. | 27 April 2015 11:02 CEST | Version of Record | https://www.mdpi.com/1996-1073/8/5/3503/pdf |
