| article html file updated | 6 February 2020 18:24 CET | Update | https://www.mdpi.com/1999-4915/7/5/2321 |
| article html file updated | 6 May 2019 20:31 CEST | Update | - |
| article html file updated | 26 March 2019 02:06 CET | Update | - |
| article html file updated | 21 August 2015 11:45 CEST | Update | - |
| article html file updated | 3 June 2015 11:45 CEST | Original file | - |
| article xml file uploaded | 3 June 2015 11:45 CEST | Original file | https://www.mdpi.com/1999-4915/7/5/2321/xml |
| article pdf uploaded. | 7 May 2015 10:28 CEST | Version of Record | https://www.mdpi.com/1999-4915/7/5/2321/pdf |
