| article html file updated | 6 February 2020 05:02 CET | Update | https://www.mdpi.com/2075-4418/3/4/356 |
| article html file updated | 7 May 2019 23:02 CEST | Update | N/A |
| article html file updated | 21 March 2019 06:20 CET | Update | N/A |
| article html file updated | 17 June 2015 14:07 CEST | Original file | N/A |
| article supplementary file uploaded. | 29 October 2013 17:00 CET | - | https://www.mdpi.com/2075-4418/3/4/356#supplementary |
| article pdf uploaded. | 21 October 2013 16:04 CEST | Version of Record | https://www.mdpi.com/2075-4418/3/4/356/pdf |
