| article html file updated | 6 February 2020 14:51 CET | Update | https://www.mdpi.com/1660-3397/13/1/159 |
| article html file updated | 7 May 2019 03:09 CEST | Update | N/A |
| article html file updated | 25 March 2019 19:55 CET | Update | N/A |
| article html file updated | 21 August 2015 05:02 CEST | Update | N/A |
| article html file updated | 27 January 2015 07:12 CET | Update | N/A |
| article xml file uploaded | 27 January 2015 07:12 CET | Update | https://www.mdpi.com/1660-3397/13/1/159/xml |
| article html file updated | 8 January 2015 09:59 CET | Original file | N/A |
| article xml file uploaded | 8 January 2015 09:59 CET | Original file | N/A |
| article pdf uploaded. | 31 December 2014 12:46 CET | Updated version of record | https://www.mdpi.com/1660-3397/13/1/159/pdf |
| article pdf uploaded. | 30 December 2014 10:46 CET | Version of Record | https://www.mdpi.com/1660-3397/13/1/159/pdf-vor |
