| article html file updated | 6 February 2020 21:44 CET | Update | https://www.mdpi.com/2076-3921/4/3/548 |
| article html file updated | 6 May 2019 13:36 CEST | Update | - |
| article html file updated | 26 March 2019 08:40 CET | Update | - |
| article html file updated | 14 October 2015 08:44 CEST | Update | - |
| article xml file uploaded | 14 October 2015 08:44 CEST | Original file | https://www.mdpi.com/2076-3921/4/3/548/xml |
| article html file updated | 21 August 2015 15:36 CEST | Original file | - |
| article pdf uploaded. | 13 August 2015 17:04 CEST | Version of Record | https://www.mdpi.com/2076-3921/4/3/548/pdf |
