| article html file updated | 6 February 2020 08:13 CET | Update | https://www.mdpi.com/1660-4601/11/4/3521 |
| article html file updated | 7 May 2019 16:42 CEST | Update | N/A |
| article html file updated | 21 March 2019 14:37 CET | Update | N/A |
| article html file updated | 20 August 2015 01:23 CEST | Update | N/A |
| article html file updated | 27 May 2014 12:33 CEST | Original file | N/A |
| article xml file uploaded | 27 May 2014 12:33 CEST | Original file | https://www.mdpi.com/1660-4601/11/4/3521/xml |
| article pdf uploaded. | 27 March 2014 12:10 CET | Version of Record | https://www.mdpi.com/1660-4601/11/4/3521/pdf |
