| article html file updated | 8 February 2020 03:46 CET | Update | https://www.mdpi.com/1996-1073/10/4/544 |
| article html file updated | 24 September 2019 08:50 CEST | Update | - |
| article html file updated | 4 May 2019 01:52 CEST | Update | - |
| article html file updated | 28 April 2017 06:22 CEST | Update | - |
| article html file updated | 17 April 2017 14:47 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 14:46 CEST | Original file | https://www.mdpi.com/1996-1073/10/4/544/xml |
| article pdf uploaded. | 17 April 2017 14:46 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/544/pdf |
