| article html file updated | 14 August 2026 13:44 CEST | Update | https://www.mdpi.com/1996-1073/10/4/506 |
| article html file updated | 8 February 2020 03:11 CET | Update | N/A |
| article html file updated | 24 September 2019 05:35 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:58 CEST | Update | N/A |
| article html file updated | 28 April 2017 06:12 CEST | Update | N/A |
| article html file updated | 10 April 2017 11:49 CEST | Update | N/A |
| article xml uploaded. | 10 April 2017 11:47 CEST | Update | https://www.mdpi.com/1996-1073/10/4/506/xml |
| article pdf uploaded. | 10 April 2017 11:47 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/4/506/pdf |
| article html file updated | 8 April 2017 13:33 CEST | Original file | N/A |
| article pdf uploaded. | 8 April 2017 13:32 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/506/pdf-vor |
