| article html file updated | 6 February 2020 15:07 CET | Update | https://www.mdpi.com/1999-4915/7/1/72 |
| article html file updated | 7 May 2019 02:37 CEST | Update | - |
| article html file updated | 25 March 2019 20:23 CET | Update | - |
| article html file updated | 21 August 2015 05:37 CEST | Update | - |
| article html file updated | 27 January 2015 07:38 CET | Update | - |
| article xml file uploaded | 27 January 2015 07:38 CET | Update | https://www.mdpi.com/1999-4915/7/1/72/xml |
| article html file updated | 22 January 2015 10:33 CET | Original file | - |
| article xml file uploaded | 22 January 2015 10:33 CET | Original file | - |
| article pdf uploaded. | 20 January 2015 08:03 CET | Updated version of record | https://www.mdpi.com/1999-4915/7/1/72/pdf |
| article pdf uploaded. | 12 January 2015 14:17 CET | Version of Record | https://www.mdpi.com/1999-4915/7/1/72/pdf-vor |
