| article html file updated | 8 February 2020 22:41 CET | Update | https://www.mdpi.com/2218-1997/3/4/82 |
| article html file updated | 2 May 2019 11:39 CEST | Update | N/A |
| article html file updated | 18 April 2019 09:16 CEST | Update | N/A |
| article html file updated | 2 January 2018 14:46 CET | Update | N/A |
| article html file updated | 30 November 2017 17:21 CET | Original file | N/A |
| article xml uploaded. | 30 November 2017 15:47 CET | Original file | https://www.mdpi.com/2218-1997/3/4/82/xml |
| article pdf uploaded. | 30 November 2017 15:47 CET | Version of Record | https://www.mdpi.com/2218-1997/3/4/82/pdf |
