| article html file updated | 6 February 2020 06:15 CET | Update | https://www.mdpi.com/2227-7382/1/3/275 |
| article html file updated | 7 May 2019 20:46 CEST | Update | - |
| article html file updated | 21 March 2019 09:34 CET | Update | - |
| article html file updated | 16 February 2017 06:56 CET | Update | - |
| article html file updated | 19 August 2015 13:56 CEST | Original file | - |
| article supplementary file uploaded. | 18 December 2013 18:37 CET | - | https://www.mdpi.com/2227-7382/1/3/275#supplementary |
| article pdf uploaded. | 16 December 2013 19:02 CET | Version of Record | https://www.mdpi.com/2227-7382/1/3/275/pdf |
