| article html file updated | 6 February 2020 19:22 CET | Update | https://www.mdpi.com/1999-4915/7/6/2749 |
| article html file updated | 6 May 2019 18:27 CEST | Update | N/A |
| article html file updated | 26 March 2019 04:08 CET | Update | N/A |
| article html file updated | 21 September 2015 09:57 CEST | Update | N/A |
| article xml file uploaded | 21 September 2015 09:57 CEST | Original file | https://www.mdpi.com/1999-4915/7/6/2749/xml |
| article html file updated | 21 August 2015 13:09 CEST | Original file | N/A |
| article pdf uploaded. | 4 June 2015 10:35 CEST | Version of Record | https://www.mdpi.com/1999-4915/7/6/2749/pdf |
