| article html file updated | 8 February 2020 00:26 CET | Update | https://www.mdpi.com/1422-0067/18/3/520 |
| article html file updated | 23 September 2019 13:53 CEST | Update | - |
| article html file updated | 4 May 2019 09:02 CEST | Update | - |
| article html file updated | 30 March 2017 10:31 CEST | Update | - |
| article html file updated | 28 February 2017 12:02 CET | Original file | - |
| article xml uploaded. | 28 February 2017 12:00 CET | Original file | https://www.mdpi.com/1422-0067/18/3/520/xml |
| article pdf uploaded. | 28 February 2017 12:00 CET | Version of Record | https://www.mdpi.com/1422-0067/18/3/520/pdf |
