| article html file updated | 7 February 2020 02:34 CET | Update | https://www.mdpi.com/1422-0067/17/1/2 |
| article html file updated | 6 May 2019 04:17 CEST | Update | - |
| article html file updated | 26 March 2019 17:01 CET | Original file | - |
| article pdf uploaded. | 29 December 2015 10:29 CET | Updated version of record | https://www.mdpi.com/1422-0067/17/1/2/pdf |
| article pdf uploaded. | 29 December 2015 09:03 CET | Updated version of record | https://www.mdpi.com/1422-0067/17/1/2/pdf-vor |
| article pdf uploaded. | 22 December 2015 15:42 CET | Updated version of record | https://www.mdpi.com/1422-0067/17/1/2/pdf-vor |
| article pdf uploaded. | 22 December 2015 13:20 CET | Version of Record | https://www.mdpi.com/1422-0067/17/1/2/pdf-vor |
| article xml uploaded. | 22 December 2015 13:20 CET | Original file | https://www.mdpi.com/1422-0067/17/1/2/xml |
