| article html file updated | 7 February 2020 08:12 CET | Update | https://www.mdpi.com/1996-1073/9/5/338 |
| article html file updated | 5 May 2019 16:46 CEST | Update | - |
| article html file updated | 27 March 2019 03:46 CET | Update | - |
| article html file updated | 26 May 2016 12:47 CEST | Update | - |
| article html file updated | 5 May 2016 06:20 CEST | Original file | - |
| article xml uploaded. | 5 May 2016 06:18 CEST | Original file | https://www.mdpi.com/1996-1073/9/5/338/xml |
| article pdf uploaded. | 5 May 2016 06:18 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/5/338/pdf |
