| article html file updated | 7 February 2020 07:02 CET | Update | https://www.mdpi.com/1422-0067/17/4/516 |
| article html file updated | 5 May 2019 19:08 CEST | Update | - |
| article html file updated | 27 March 2019 01:25 CET | Update | - |
| article html file updated | 28 April 2016 05:02 CEST | Update | - |
| article html file updated | 8 April 2016 13:16 CEST | Original file | - |
| article xml uploaded. | 8 April 2016 13:15 CEST | Update | https://www.mdpi.com/1422-0067/17/4/516/xml |
| article pdf uploaded. | 8 April 2016 13:15 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/4/516/pdf |
