| article html file updated | 7 February 2020 04:41 CET | Update | https://www.mdpi.com/1422-0067/17/2/249 |
| article html file updated | 6 May 2019 00:02 CEST | Update | N/A |
| article html file updated | 26 March 2019 21:00 CET | Original file | N/A |
| article pdf uploaded. | 18 February 2016 09:04 CET | Version of Record | https://www.mdpi.com/1422-0067/17/2/249/pdf |
| article xml uploaded. | 18 February 2016 09:04 CET | Original file | https://www.mdpi.com/1422-0067/17/2/249/xml |
