| article html file updated | 7 February 2020 03:28 CET | Update | https://www.mdpi.com/1422-0067/17/1/109 |
| article html file updated | 6 May 2019 02:31 CEST | Update | N/A |
| article html file updated | 26 March 2019 18:31 CET | Original file | N/A |
| article pdf uploaded. | 18 January 2016 14:42 CET | Updated version of record | https://www.mdpi.com/1422-0067/17/1/109/pdf |
| article xml uploaded. | 18 January 2016 14:42 CET | Update | https://www.mdpi.com/1422-0067/17/1/109/xml |
| article pdf uploaded. | 15 January 2016 10:43 CET | Version of Record | https://www.mdpi.com/1422-0067/17/1/109/pdf-vor |
| article xml uploaded. | 15 January 2016 10:43 CET | Original file | N/A |
