| article html file updated | 7 February 2020 05:03 CET | Update | https://www.mdpi.com/1422-0067/17/3/284 |
| article html file updated | 5 May 2019 23:13 CEST | Update | - |
| article html file updated | 26 March 2019 21:46 CET | Update | - |
| article html file updated | 30 March 2016 12:00 CEST | Original file | - |
| article pdf uploaded. | 25 February 2016 12:58 CET | Version of Record | https://www.mdpi.com/1422-0067/17/3/284/pdf |
| article xml uploaded. | 25 February 2016 12:58 CET | Original file | https://www.mdpi.com/1422-0067/17/3/284/xml |
