| article html file updated | 6 February 2020 15:14 CET | Update | https://www.mdpi.com/2072-4292/7/1/971 |
| article html file updated | 7 May 2019 02:22 CEST | Update | - |
| article html file updated | 25 March 2019 20:36 CET | Update | - |
| article html file updated | 21 August 2015 05:59 CEST | Update | - |
| article html file updated | 29 January 2015 07:43 CET | Original file | - |
| article xml file uploaded | 29 January 2015 07:43 CET | Original file | https://www.mdpi.com/2072-4292/7/1/971/xml |
| article pdf uploaded. | 19 January 2015 07:51 CET | Updated version of record | https://www.mdpi.com/2072-4292/7/1/971/pdf |
| article pdf uploaded. | 16 January 2015 12:09 CET | Version of Record | https://www.mdpi.com/2072-4292/7/1/971/pdf-vor |
