| article html file updated | 6 February 2020 14:49 CET | Update | https://www.mdpi.com/1660-3397/13/1/141 |
| article html file updated | 7 May 2019 03:13 CEST | Update | - |
| article html file updated | 25 March 2019 19:53 CET | Update | - |
| article html file updated | 21 August 2015 04:58 CEST | Update | - |
| article html file updated | 27 January 2015 07:12 CET | Original file | - |
| article xml file uploaded | 27 January 2015 07:12 CET | Original file | https://www.mdpi.com/1660-3397/13/1/141/xml |
| article pdf uploaded. | 29 December 2014 14:20 CET | Version of Record | https://www.mdpi.com/1660-3397/13/1/141/pdf |
