| article html file updated | 6 February 2020 18:04 CET | Update | https://www.mdpi.com/2071-1050/7/5/5139 |
| article html file updated | 20 September 2019 20:40 CEST | Update | N/A |
| article html file updated | 6 May 2019 21:09 CEST | Update | N/A |
| article html file updated | 26 March 2019 01:27 CET | Update | N/A |
| article html file updated | 21 August 2015 11:13 CEST | Original file | N/A |
| article pdf uploaded. | 27 April 2015 10:39 CEST | Version of Record | https://www.mdpi.com/2071-1050/7/5/5139/pdf |
