| article html file updated | 6 February 2020 06:03 CET | Update | https://www.mdpi.com/2073-8994/5/4/344 |
| article html file updated | 7 May 2019 21:08 CEST | Update | - |
| article html file updated | 21 March 2019 09:01 CET | Update | - |
| article html file updated | 9 August 2017 04:40 CEST | Original file | - |
| article xml uploaded. | 9 August 2017 04:39 CEST | Original file | https://www.mdpi.com/2073-8994/5/4/344/xml |
| article pdf uploaded. | 9 December 2013 11:03 CET | Version of Record | https://www.mdpi.com/2073-8994/5/4/344/pdf |
