| article html file updated | 6 February 2020 17:25 CET | Update | https://www.mdpi.com/2072-6643/7/4/2499 |
| article html file updated | 6 May 2019 22:25 CEST | Update | N/A |
| article html file updated | 26 March 2019 00:15 CET | Update | N/A |
| article html file updated | 21 August 2015 10:06 CEST | Update | N/A |
| article html file updated | 28 April 2015 08:09 CEST | Original file | N/A |
| article xml file uploaded | 28 April 2015 08:09 CEST | Original file | https://www.mdpi.com/2072-6643/7/4/2499/xml |
| article pdf uploaded. | 9 April 2015 09:54 CEST | Updated version of record | https://www.mdpi.com/2072-6643/7/4/2499/pdf |
| article pdf uploaded. | 8 April 2015 13:40 CEST | Version of Record | https://www.mdpi.com/2072-6643/7/4/2499/pdf-vor |
