| article html file updated | 6 February 2020 15:23 CET | Update | https://www.mdpi.com/2072-666X/6/2/172 |
| article html file updated | 7 May 2019 02:04 CEST | Update | N/A |
| article html file updated | 25 March 2019 20:51 CET | Update | N/A |
| article html file updated | 21 August 2015 06:18 CEST | Original file | N/A |
| article pdf uploaded. | 23 January 2015 08:43 CET | Updated version of record | https://www.mdpi.com/2072-666X/6/2/172/pdf |
| article supplementary file uploaded. | 22 January 2015 13:58 CET | - | https://www.mdpi.com/2072-666X/6/2/172#supplementary |
| article pdf uploaded. | 22 January 2015 13:58 CET | Version of Record | https://www.mdpi.com/2072-666X/6/2/172/pdf-vor |
