| article html file updated | 8 February 2020 03:31 CET | Update | https://www.mdpi.com/1996-1073/10/4/525 |
| article html file updated | 24 September 2019 07:16 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:21 CEST | Update | N/A |
| article html file updated | 28 April 2017 06:17 CEST | Update | N/A |
| article html file updated | 13 April 2017 11:47 CEST | Original file | N/A |
| article xml uploaded. | 13 April 2017 11:45 CEST | Original file | https://www.mdpi.com/1996-1073/10/4/525/xml |
| article pdf uploaded. | 13 April 2017 11:45 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/525/pdf |
