| article html file updated | 6 February 2020 05:36 CET | Update | https://www.mdpi.com/2218-273X/3/4/967 |
| article html file updated | 7 May 2019 21:59 CEST | Update | N/A |
| article html file updated | 21 March 2019 07:49 CET | Update | N/A |
| article html file updated | 14 March 2018 18:00 CET | Update | N/A |
| article html file updated | 19 August 2015 09:59 CEST | Update | N/A |
| article html file updated | 28 April 2014 10:36 CEST | Original file | N/A |
| article xml file uploaded | 28 April 2014 10:36 CEST | Original file | https://www.mdpi.com/2218-273X/3/4/967/xml |
| article pdf uploaded. | 19 November 2013 16:05 CET | Updated version of record | https://www.mdpi.com/2218-273X/3/4/967/pdf |
| article pdf uploaded. | 18 November 2013 15:38 CET | Version of Record | https://www.mdpi.com/2218-273X/3/4/967/pdf-vor |
