| article html file updated | 6 February 2020 19:03 CET | Update | https://www.mdpi.com/1660-3397/13/6/3309 |
| article html file updated | 6 May 2019 19:05 CEST | Update | N/A |
| article html file updated | 26 March 2019 03:32 CET | Update | N/A |
| article html file updated | 21 August 2015 12:41 CEST | Update | N/A |
| article html file updated | 2 July 2015 06:37 CEST | Original file | N/A |
| article xml file uploaded | 2 July 2015 06:37 CEST | Original file | https://www.mdpi.com/1660-3397/13/6/3309/xml |
| article pdf uploaded. | 27 May 2015 11:58 CEST | Version of Record | https://www.mdpi.com/1660-3397/13/6/3309/pdf |
