| article html file updated | 8 February 2020 03:25 CET | Update | https://www.mdpi.com/1996-1073/10/4/519 |
| article html file updated | 24 September 2019 06:49 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:31 CEST | Update | N/A |
| article html file updated | 28 April 2017 06:16 CEST | Update | N/A |
| article html file updated | 12 April 2017 15:49 CEST | Original file | N/A |
| article xml uploaded. | 12 April 2017 15:47 CEST | Original file | https://www.mdpi.com/1996-1073/10/4/519/xml |
| article pdf uploaded. | 12 April 2017 15:47 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/519/pdf |
