| article html file updated | 7 February 2020 04:51 CET | Update | https://www.mdpi.com/1422-0067/17/2/262 |
| article html file updated | 5 May 2019 23:40 CEST | Update | N/A |
| article html file updated | 26 March 2019 21:21 CET | Original file | N/A |
| article pdf uploaded. | 22 February 2016 11:51 CET | Version of Record | https://www.mdpi.com/1422-0067/17/2/262/pdf |
| article xml uploaded. | 22 February 2016 11:51 CET | Original file | https://www.mdpi.com/1422-0067/17/2/262/xml |
