| article html file updated | 6 February 2020 14:57 CET | Update | https://www.mdpi.com/2072-6643/7/1/306 |
| article html file updated | 7 May 2019 02:58 CEST | Update | N/A |
| article html file updated | 25 March 2019 20:04 CET | Update | N/A |
| article html file updated | 21 August 2015 05:17 CEST | Update | N/A |
| article html file updated | 23 January 2015 11:54 CET | Original file | N/A |
| article xml file uploaded | 23 January 2015 11:54 CET | Original file | https://www.mdpi.com/2072-6643/7/1/306/xml |
| article supplementary file uploaded. | 6 January 2015 12:27 CET | - | https://www.mdpi.com/2072-6643/7/1/306#supplementary |
| article pdf uploaded. | 6 January 2015 12:26 CET | Version of Record | https://www.mdpi.com/2072-6643/7/1/306/pdf |