| article html file updated | 7 February 2020 04:31 CET | Update | https://www.mdpi.com/1422-0067/17/2/234 |
| article html file updated | 6 May 2019 00:28 CEST | Update | N/A |
| article html file updated | 26 March 2019 20:37 CET | Original file | N/A |
| article pdf uploaded. | 16 February 2016 05:05 CET | Updated version of record | https://www.mdpi.com/1422-0067/17/2/234/pdf |
| article xml uploaded. | 16 February 2016 05:05 CET | Original file | https://www.mdpi.com/1422-0067/17/2/234/xml |
| article pdf uploaded. | 12 February 2016 08:34 CET | Version of Record | https://www.mdpi.com/1422-0067/17/2/234/pdf-vor |
