| article html file updated | 6 February 2020 16:55 CET | Update | https://www.mdpi.com/1999-4915/7/3/1540 |
| article html file updated | 6 May 2019 23:14 CEST | Update | N/A |
| article html file updated | 25 March 2019 23:27 CET | Update | N/A |
| article html file updated | 21 August 2015 09:13 CEST | Update | N/A |
| article html file updated | 31 March 2015 12:41 CEST | Original file | N/A |
| article xml file uploaded | 31 March 2015 12:41 CEST | Original file | https://www.mdpi.com/1999-4915/7/3/1540/xml |
| article pdf uploaded. | 23 March 2015 17:01 CET | Version of Record | https://www.mdpi.com/1999-4915/7/3/1540/pdf |
