| article html file updated | 7 February 2020 02:48 CET | Update | https://www.mdpi.com/1422-0067/17/1/25 |
| article html file updated | 6 May 2019 03:46 CEST | Update | N/A |
| article html file updated | 26 March 2019 17:23 CET | Original file | N/A |
| article pdf uploaded. | 28 December 2015 12:53 CET | Version of Record | https://www.mdpi.com/1422-0067/17/1/25/pdf |
| article xml uploaded. | 28 December 2015 12:53 CET | Original file | https://www.mdpi.com/1422-0067/17/1/25/xml |
