| article html file updated | 6 February 2020 08:44 CET | Update | https://www.mdpi.com/1422-0067/15/4/6961 |
| article html file updated | 7 May 2019 15:36 CEST | Update | N/A |
| article html file updated | 21 March 2019 15:52 CET | Update | N/A |
| article html file updated | 20 August 2015 04:02 CEST | Update | N/A |
| article html file updated | 12 May 2014 11:43 CEST | Update | N/A |
| article xml file uploaded | 12 May 2014 11:43 CEST | Update | https://www.mdpi.com/1422-0067/15/4/6961/xml |
| article html file updated | 12 May 2014 11:15 CEST | Original file | N/A |
| article xml file uploaded | 12 May 2014 11:14 CEST | Original file | N/A |
| article pdf uploaded. | 22 April 2014 10:35 CEST | Version of Record | https://www.mdpi.com/1422-0067/15/4/6961/pdf |
