| article html file updated | 8 February 2020 01:11 CET | Update | https://www.mdpi.com/1422-0067/18/3/606 |
| article html file updated | 4 May 2019 07:19 CEST | Update | - |
| article html file updated | 30 March 2017 10:43 CEST | Update | - |
| article html file updated | 10 March 2017 10:17 CET | Original file | - |
| article xml uploaded. | 10 March 2017 10:16 CET | Original file | https://www.mdpi.com/1422-0067/18/3/606/xml |
| article pdf uploaded. | 10 March 2017 10:16 CET | Version of Record | https://www.mdpi.com/1422-0067/18/3/606/pdf |
