| article html file updated | 8 February 2020 02:51 CET | Update | https://www.mdpi.com/1422-0067/18/4/710 |
| article html file updated | 24 September 2019 03:44 CEST | Update | - |
| article html file updated | 4 May 2019 03:42 CEST | Update | - |
| article html file updated | 2 May 2017 05:49 CEST | Update | - |
| article html file updated | 4 April 2017 09:34 CEST | Original file | - |
| article xml uploaded. | 4 April 2017 09:32 CEST | Original file | https://www.mdpi.com/1422-0067/18/4/710/xml |
| article pdf uploaded. | 4 April 2017 09:32 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/710/pdf |
