| article html file updated | 6 February 2020 15:14 CET | Update | https://www.mdpi.com/1660-3397/13/1/431 |
| article html file updated | 7 May 2019 02:21 CEST | Update | - |
| article html file updated | 25 March 2019 20:36 CET | Update | - |
| article html file updated | 21 August 2015 06:00 CEST | Update | - |
| article html file updated | 27 January 2015 07:13 CET | Original file | - |
| article xml file uploaded | 27 January 2015 07:13 CET | Original file | https://www.mdpi.com/1660-3397/13/1/431/xml |
| article pdf uploaded. | 19 January 2015 08:19 CET | Updated version of record | https://www.mdpi.com/1660-3397/13/1/431/pdf |
| article pdf uploaded. | 16 January 2015 13:28 CET | Version of Record | https://www.mdpi.com/1660-3397/13/1/431/pdf-vor |
