| article html file updated | 6 February 2020 06:58 CET | Update | https://www.mdpi.com/1422-0067/15/2/1915 |
| article html file updated | 7 May 2019 19:17 CEST | Update | N/A |
| article html file updated | 21 March 2019 11:38 CET | Update | N/A |
| article html file updated | 19 August 2015 18:54 CEST | Update | N/A |
| article html file updated | 20 March 2014 09:48 CET | Original file | N/A |
| article xml file uploaded | 20 March 2014 09:47 CET | Original file | https://www.mdpi.com/1422-0067/15/2/1915/xml |
| article pdf uploaded. | 27 January 2014 14:20 CET | Version of Record | https://www.mdpi.com/1422-0067/15/2/1915/pdf |
