| article html file updated | 8 February 2020 02:55 CET | Update | https://www.mdpi.com/1996-1073/10/4/467 |
| article html file updated | 24 September 2019 04:02 CEST | Update | - |
| article html file updated | 4 May 2019 03:34 CEST | Update | - |
| article html file updated | 28 April 2017 06:03 CEST | Update | - |
| article html file updated | 5 April 2017 09:43 CEST | Original file | - |
| article xml uploaded. | 5 April 2017 09:42 CEST | Original file | https://www.mdpi.com/1996-1073/10/4/467/xml |
| article pdf uploaded. | 5 April 2017 09:42 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/467/pdf |
