| article html file updated | 6 February 2020 07:53 CET | Update | https://www.mdpi.com/1422-0067/15/3/4431 |
| article html file updated | 7 May 2019 17:21 CEST | Update | N/A |
| article html file updated | 21 March 2019 13:50 CET | Update | N/A |
| article html file updated | 19 August 2015 23:39 CEST | Update | N/A |
| article html file updated | 8 April 2014 10:53 CEST | Original file | N/A |
| article xml file uploaded | 8 April 2014 10:52 CEST | Original file | https://www.mdpi.com/1422-0067/15/3/4431/xml |
| article pdf uploaded. | 13 March 2014 10:59 CET | Version of Record | https://www.mdpi.com/1422-0067/15/3/4431/pdf |
