| article html file updated | 6 February 2020 03:20 CET | Update | https://www.mdpi.com/2220-9964/2/3/645 |
| article html file updated | 8 May 2019 02:38 CEST | Update | - |
| article html file updated | 21 March 2019 01:40 CET | Update | - |
| article html file updated | 17 June 2015 11:33 CEST | Original file | - |
| article supplementary file uploaded. | 22 July 2013 09:48 CEST | - | https://www.mdpi.com/2220-9964/2/3/645#supplementary |
| article pdf uploaded. | 22 July 2013 09:48 CEST | Version of Record | https://www.mdpi.com/2220-9964/2/3/645/pdf |
